Full PEP 508 environment markers

Author: frostming

README.md

@@ -1,11 +1,34 @@
 # PDM - Python Development Master
 
-*This is WIP project, do not use it*
+A modern Python package manager with PEP 582 support.
 
-## TODO list
+## What is PDM?
 
-- [ ] Resolution
-- [ ] Installation
-- [ ] PEP 582 local packages
-- [ ] Publish
-- [ ] PEP 517 build system
+PDM is meant to be a next generation Python package management tool.
+It is originally built for personal interest. If you feel you are going well
+with `Pipenv` or `Poetry` and don't want to introduce another package manager,
+just stick to it. But if you are missing something that is not present in those tools,
+you can probably find some goodness in `pdm`.
+
+**Open for feature requests, find yourself at https://github.com/pdm-project/call-for-features.**
+
+## Installation:
+
+> It is still a WIP project and not published to PyPI.
+
+## Usage
+
+`python -m pdm --help` should be a good guidance.
+
+## 0.1.0 Roadmap
+
+- [x] A dependency resolver that just works.
+- [x] A PEP 582 installer.
+- [x] PEP 440 version specifiers.
+- [x] PEP 508 environment markers.
+- [x] Running scripts with PEP 582 local packages.
+- [x] Console scripts are injected with local paths.
+- [x] A neet CLI.
+- [x] `add`, `lock`, `list`, `update`, `remove` commands.
+- [ ] PEP 517 build backends.
+- [x] Continuous Integration.