README: update links for new docsite structure

Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>

README.md

@@ -38,29 +38,31 @@ system in a larger project.
   [4]: https://zenodo.org/badge/DOI/10.5281/zenodo.591727.svg
   [5]: https://sel4.systems/Info/Docs/seL4-manual-latest.pdf
   [6]: https://docs.sel4.systems/projects/buildsystem/host-dependencies.html
-  [7]: https://docs.sel4.systems/releases/sel4
+  [7]: https://docs.sel4.systems/releases/seL4.html
   [8]: https://docs.sel4.systems/projects/sel4/api-doc.html
 
 seL4 Basics
 ---------------
 
 - [Tutorials](https://docs.sel4.systems/Tutorials)
-- [Documentation](https://sel4.systems/Learn/)
+- [Overview](https://sel4.systems/Learn/)
+- [Doc Site](https://docs.sel4.systems/)
 - [seL4 libraries](https://docs.sel4.systems/projects/user_libs)
 - [seL4Test](https://docs.sel4.systems/projects/sel4test/)
-- [Debugging guide](https://docs.sel4.systems/projects/sel4-tutorials/debugging-guide)
+- [Debugging guide](https://docs.sel4.systems/projects/sel4-tutorials/debugging-guide.html)
 - [Benchmarking guide](https://docs.sel4.systems/projects/sel4-tutorials/benchmarking-guide.html)
 - [Virtualization on seL4](https://docs.sel4.systems/projects/virtualization/)
 - [Host Build Dependencies](https://docs.sel4.systems/projects/buildsystem/host-dependencies.html)
-- [Porting seL4](https://docs.sel4.systems/projects/sel4/porting)
+- [Porting seL4](https://docs.sel4.systems/projects/sel4/porting.html)
 
 Community
 ---------
 
-- Forums:
+- Open-source help and support:
-  - [Discourse](https://sel4.discourse.group/)
+  - [Discourse Forum](https://sel4.discourse.group/)
-  - [seL4 Announce](https://lists.sel4.systems/postorius/lists/announce.sel4.systems)
+  - [Mattermost Chat](https://mattermost.trustworthy.systems/sel4-external/)
-  - [seL4 Devel](https://lists.sel4.systems/postorius/lists/devel.sel4.systems)
+  - [seL4 announce mailing list](https://lists.sel4.systems/postorius/lists/announce.sel4.systems)
+  - [seL4 devel mailing list](https://lists.sel4.systems/postorius/lists/devel.sel4.systems)
 
 See also the [contact] links on the seL4 website.
 
@@ -77,9 +79,9 @@ software, we ask you to follow our [vulnerability disclosure policy][VDP].
 Manual
 ------
 
-A hosted version of the [manual](manual/) for the most recent release can be found [here][5].
+A hosted PDF version of the [manual](manual/) for the most recent release can be found [here][5].
 
-A web version of the API can be found [here][8]
+A web version of the [API documentation][8] is available as well.
 
 Repository Overview
 -------------------
@@ -97,15 +99,11 @@ See the seL4 website for [build instructions][6].
 Status
 ------
 
-A list of releases and current project status can be found under [seL4 releases][7].
+- [Releases][7]: list of available seL4 releases
-
 - [Roadmap](https://sel4.systems/roadmap.html): new features in development
-- [Hardware Support](https://docs.sel4.systems/Hardware): information about hardware platform ports
+- [Hardware Support](https://docs.sel4.systems/Hardware/): information about hardware platform ports
-- [Kernel Features](https://docs.sel4.systems/projects/sel4/status): information about available
+- [Kernel Options](https://docs.sel4.systems/projects/sel4/configurations.html): information about available
-  kernel features
+  config options and features
-- [Userland Components and
-      Drivers](https://docs.sel4.systems/projects/available-user-components.html): available device
-      drivers and userland components
 
 License
 -------