fix markdownlint errors after integration of new linter

.devcontainer/README-devcontainer.md

@@ -11,13 +11,13 @@ This folder contains all files needed for the development container:
 If you want to use a devcontainer on a remote host add the following to the settings.json of your VS Code config in your
 local workspace and replace the placeholder with your values:
 
-```
+```json
 "docker.host": "ssh://your-remote-user@your-remote-machine-fqdn-or-ip-here",
 ```
 
 Also update the workspace mount to a volume in the [devcontainer.json](devcontainer.json) file:
 
-```
+```json
 "workspaceMount": "source=seerep-ws,target=/home/docker/workspace/src,type=volume",
 ```
 
@@ -29,7 +29,7 @@ instructions copied from [here](https://code.visualstudio.com/docs/remote/contai
 3. First, start the SSH Agent in the background by running the following in a terminal: `eval "$(ssh-agent -s)"`
 4. Then add these lines to your `~/.bash_profile` or `~/.zprofile` (for Zsh) so it starts on login:
 
-```
+```bash
 if [ -z "$SSH_AUTH_SOCK" ]; then
   # Check for a currently running instance of the agent
   RUNNING_AGENT="`ps -ax | grep 'ssh-agent -s' | grep -v grep | wc -l | tr -d '[:space:]'`"

docs/mkdocs/home/index.md

@@ -24,24 +24,24 @@ on the context.
 ## Core Features
 
 - Store robotic sensor data
-    - Images
-    - 3D-Points
-    - Point Clouds
-    - TF
+  - Images
+  - 3D-Points
+  - Point Clouds
+  - TF
 - Store analysis results alongside the corresponding sensor data
-    - Add (bounding box based) semantic annotations with confidences to the data
-    - Extend semantic annotations by object instances which are in multiple datasets
-    - Store information about an instance alongside the data
-    - Link 3d points to an instance to define the instance position
-    - Allow multiple categories of labels (e.g. a category per CNN). Thus, enabling easy evaluation and comparison of
+  - Add (bounding box based) semantic annotations with confidences to the data
+  - Extend semantic annotations by object instances which are in multiple datasets
+  - Store information about an instance alongside the data
+  - Link 3d points to an instance to define the instance position
+  - Allow multiple categories of labels (e.g. a category per CNN). Thus, enabling easy evaluation and comparison of
   multiple CNNs based on the same data
 - Fast spatio-temporal-semantic queries with
   [gRPC](https://grpc.io/docs/what-is-grpc/introduction/).
 - Storage of data generated by the robotic system:
-    - Offline on the robot (no or slow internet connection), currently in Progress
-          [#89](https://github.com/agri-gaia/seerep/issues/89)
-    - Online on a server-cluster, with
-          [gRPC](https://grpc.io/docs/what-is-grpc/introduction/).
+  - Offline on the robot (no or slow internet connection), currently in Progress
+        [#89](https://github.com/agri-gaia/seerep/issues/89)
+  - Online on a server-cluster, with
+        [gRPC](https://grpc.io/docs/what-is-grpc/introduction/).
 - Shifting computation loads away from the robot and into the cloud.
 - Easily switch between [Protocol Buffers
   (PB)](https://developers.google.com/protocol-buffers/docs/overview) /

docs/mkdocs/legal-notice.md

@@ -14,7 +14,7 @@ Trippstadter Str. 122<br>
 Germany
 
 Phone: [+49 631 20575 0](tel:+49631205750)<br>
-Email: [[email protected]](mailto:[email protected])
+Email: [[email protected]](mailto:[email protected]>)
 
 Register Court: Amtsgericht Kaiserslautern<br>
 Register Number: HRB 2313
@@ -31,7 +31,7 @@ Germany<br>
 
 Phone: [+49 541 386050 2254](tel:+495413860502254)<br>
 E-mail: [[email protected]](mailto:[email protected])<br>
-Website URL: www.dfki.de
+Website URL: <www.dfki.de>
 
 ## Liability for content
 
@@ -64,7 +64,7 @@ checked by DFKI when the links were first set up to determine whether any legal
 the check, no legal infringements were apparent. However, it cannot be ruled out that the content is subsequently
 changed by the respective providers. A permanent control of the content of the linked pages is not reasonable without
 evidence of a legal infringement. Should you believe that the linked external pages infringe applicable law or otherwise
-contain inappropriate content, please notify us directly at: [email protected].
+contain inappropriate content, please notify us directly at: <[email protected]>.
 
 In case DFKI should notice or receive any indication that an external offer to which it has linked might cause civil or
 criminal liability, DFKI will immediately delete this link.

docs/mkdocs/tutorials/images.md

@@ -227,12 +227,14 @@ fullyEncapsulated`. If false, resultant polygons, which are partially inside the
 
 * Labels (semantic query)
 
+<!-- markdownlint-disable -->
+
 === "Protocol Buffers"
 
     Source: `examples/python/gRPC/images/gRPC_pb_queryImage.py`
 
     ```python
-   #!/usr/bin/env python3
+    #!/usr/bin/env python3
 
     import sys
 
@@ -458,11 +460,11 @@ fullyEncapsulated`. If false, resultant polygons, which are partially inside the
             )
 
     print("done.")
-```
+    ```
 
     Output:
 
-    ```
+    ```shell
     testproject 3af70ba8-1e81-4f60-86d2-a4257d88f01e
 
     uuidmsg: 00ced216-40b1-4d54-817f-11c413b228c6

docs/mkdocs/tutorials/projects.md

@@ -44,6 +44,8 @@ The new project on the server is (name/uuid):
 
 After we created two projects, we can query them. Currently the name doesn't have to be unique.
 
+<!-- markdownlint-disable -->
+
 === "Protocol Buffers"
 
     Source: `examples/gRPC/meta/gRPC_pb_getProjects.py`

seerep_msgs/README.md

@@ -5,66 +5,65 @@
 ## Table of Contents
 
 - [Header.proto](#Header.proto)
-    - [Header](#ag.Header)
+  - [Header](#ag.Header)
 
 - [Image.proto](#Image.proto)
-    - [Image](#ag.Image)
+  - [Image](#ag.Image)
 
 - [Point.proto](#Point.proto)
-    - [Point](#ag.Point)
+  - [Point](#ag.Point)
 
 - [PointCloud2.proto](#PointCloud2.proto)
-    - [PointCloud2](#ag.PointCloud2)
+  - [PointCloud2](#ag.PointCloud2)
 
 - [PointField.proto](#PointField.proto)
-    - [PointField](#ag.PointField)
-
-    - [PointField.Datatype](#ag.PointField.Datatype)
+  - [PointField](#ag.PointField)
+  - [PointField.Datatype](#ag.PointField.Datatype)
 
 - [PointStamped.proto](#PointStamped.proto)
-    - [PointStamped](#ag.PointStamped)
+  - [PointStamped](#ag.PointStamped)
 
 - [Polygon.proto](#Polygon.proto)
-    - [Polygon](#ag.Polygon)
+  - [Polygon](#ag.Polygon)
 
 - [PolygonStamped.proto](#PolygonStamped.proto)
-    - [PolygonStamped](#ag.PolygonStamped)
+  - [PolygonStamped](#ag.PolygonStamped)
 
 - [Pose.proto](#Pose.proto)
-    - [Pose](#ag.Pose)
+  - [Pose](#ag.Pose)
 
 - [PoseStamped.proto](#PoseStamped.proto)
-    - [PoseStamped](#ag.PoseStamped)
+  - [PoseStamped](#ag.PoseStamped)
 
 - [Quaternion.proto](#Quaternion.proto)
-    - [Quaternion](#ag.Quaternion)
+  - [Quaternion](#ag.Quaternion)
 
 - [QuaternionStamped.proto](#QuaternionStamped.proto)
-    - [QuaternionStamped](#ag.QuaternionStamped)
+  - [QuaternionStamped](#ag.QuaternionStamped)
 
 - [Transform.proto](#Transform.proto)
-    - [Transform](#ag.Transform)
+  - [Transform](#ag.Transform)
 
 - [TransformStamped.proto](#TransformStamped.proto)
-    - [TransformStamped](#ag.TransformStamped)
+  - [TransformStamped](#ag.TransformStamped)
 
 - [Twist.proto](#Twist.proto)
-    - [Twist](#ag.Twist)
+  - [Twist](#ag.Twist)
 
 - [TwistStamped.proto](#TwistStamped.proto)
-    - [TwistStamped](#ag.TwistStamped)
+  - [TwistStamped](#ag.TwistStamped)
 
 - [TwistWithCovariance.proto](#TwistWithCovariance.proto)
-    - [TwistWithCovariance](#ag.TwistWithCovariance)
+  - [TwistWithCovariance](#ag.TwistWithCovariance)
 
 - [TwistWithCovarianceStamped.proto](#TwistWithCovarianceStamped.proto)
-    - [TwistWithCovarianceStamped](#ag.TwistWithCovarianceStamped)
+  - [TwistWithCovarianceStamped](#ag.TwistWithCovarianceStamped)
 
 - [Vector3.proto](#Vector3.proto)
-    - [Vector3](#ag.Vector3)
+  - [Vector3](#ag.Vector3)
 
 - [Vector3Stamped.proto](#Vector3Stamped.proto)
-    - [Vector3Stamped](#ag.Vector3Stamped)
+- [Vector3Stamped](#ag.Vector3Stamped)
 
 - [Scalar Value Types](#scalar-value-types)
 
@@ -83,6 +82,7 @@ particular coordinate frame.
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
 | seq | [uint32](#uint32) |  | sequence id, consecutively increasing id |
+<!-- markdownlint-disable-next-line MD051 -->
 | stamp | [google.protobuf.Timestamp](#google.protobuf.Timestamp) |  | time this data is associated with |
 | frame_id | [string](#string) |  | name of the coordinate frame this data is associated with |