docs: fix heading levels

Author: dougwilson

Collaborator-Guide.md

@@ -1,3 +1,4 @@
+# Express Collaborator Guide
 
 ## Website Issues
 

Contributing.md

@@ -15,7 +15,7 @@ contributors can be involved in decision making.
 * A **TC (Technical Committee)** is a group of committers representing the required technical
 expertise to resolve rare disputes.
 
-# Logging Issues
+## Logging Issues
 
 Log an issue for any question or problem you might have. When in doubt, log an issue, and
 any additional policies about what to include will be provided in the responses. The only
@@ -27,7 +27,7 @@ add appropriate metadata before the issue is addressed.
 Please be courteous and respectful. Every participant is expected to follow the
 project's Code of Conduct.
 
-# Contributions
+## Contributions
 
 Any change to resources in this repository must be through pull requests. This applies to all changes
 to documentation, code, binary files, etc. Even long term committers and TC members must use
@@ -56,15 +56,15 @@ discuss pending contributions in order to find a resolution. It is expected that
 small minority of issues be brought to the TC for resolution and that discussion and
 compromise among committers be the default resolution mechanism.
 
-# Becoming a Committer
+## Becoming a Committer
 
 All contributors who land a non-trivial contribution should be on-boarded in a timely manner,
 and added as a committer, and be given write access to the repository.
 
 Committers are expected to follow this policy and continue to send pull requests, go through
 proper review, and have other committers merge their pull requests.
 
-# TC Process
+## TC Process
 
 The TC uses a "consensus seeking" process for issues that are escalated to the TC.
 The group tries to find a resolution that has no open objections among TC members.
@@ -81,5 +81,3 @@ Members can be added to the TC at any time. Any committer can nominate another c
 to the TC and the TC uses its standard consensus seeking process to evaluate whether or
 not to add this new member. Members who do not participate consistently at the level of
 a majority of the other members are expected to resign.
-
-