[MRG] Merge pull request #416 from dfir-iris/workflow_documentation

[DOC] Started documentation of the git workflow

CODESTYLE.md

@@ -2,6 +2,29 @@
 
 If you wish to develop in DFIR-IRIS, please make sure to read the following tips.
 
+## Workflow
+
+- development is done on branch `develop`
+  ```
+  git switch develop
+  ```
+- safe and small modifications may be directly performed on branch `develop`
+- modifications which either imply more work or are risky, must be performed on a branch of their own
+  ```
+  git switch -c <branch-name>
+  git push --set-upstream origin <branch-name>
+  ```
+- when work on the branch is ready to be published, then a pull request (PR) is created from the github interface.
+  Do not forget to choose `develop` as the base branch (by default it is set to `master`,
+  more information [here](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request#changing-the-branch-range-and-destination-repository)).
+
+
+### Commits
+Try to follow the repository convention:
+
+- If it's not linked to an issue, use the format `[action] Commit message`, with `action` being a 3 letters action related to the commit, eg `ADD`for additions, `DEL` for deletions, `IMP` for improvements, etc.
+- If it's linked to an issue, prepend with the issue ID, i.e `[#issue_id][action] Commit message`
+
 ## License header
 
 New files should be prefixed by the following license header, where `${current_year}` is replaced by the current year
@@ -33,12 +56,6 @@ New files should be prefixed by the following license header, where `${current_y
 #!/usr/bin/env python3
 ```
 
-## Commits 
-Try to follow the repository convention : 
-
-- If it's not linked to an issue, use the format `[action] Commit message`, with `action` being a 3 letters action related to the commit, eg `ADD`for additions, `DEL` for deletions, `IMP` for improvements, etc.
-- If it's linked to an issue, prepend with the issue ID, i.e `[#issue_id][action] Commit message` 
-
 ## Code
 The code should be pretty easy to apprehend. It's not perfect but it will improve over time.   
 Some documentation about development is available [here](https://docs.dfir-iris.org/development/).