chore: lowercase for filenames

docs/dev/howto/index.rst

@@ -4,8 +4,8 @@ How To
 .. toctree::
    :maxdepth: 1
 
-   PROJECT_SETUP.md
-   DOCKER.md
-   DOCUMENTING.md
-   RELEASING.md
-   CONTRIBUTING.md
+   project_setup.md
+   docker.md
+   documenting.md
+   releasing.md
+   contributing.md

docs/dev/howto/project_setup.md

@@ -5,7 +5,7 @@ FIXME(Arthur): to check what needs to be updated here
 # Project Setup
 
 ```{note}  
-You will need Zama's specific environment with zamalang module to have the project fully functional. It is currently only delivered via the docker image (see the [docker](./DOCKER.md) guide).
+You will need Zama's specific environment with zamalang module to have the project fully functional. It is currently only delivered via the docker image (see the [docker](./docker.md) guide).
 ```
 
 ## Installing Python v3.8