add workflow description

code/workflows.md

@@ -0,0 +1,12 @@
+### Workflows
+
+#### 'Issues to pull requests'
+
+- a user creates an issue with content/suggestion/... in the 'contents' repo
+- if needed, initial discussion about the content happens in the issue
+- if the issue is deemed OK, a reviewer (actually any user) creates a PR to one of the following repos and then closes the issue with a link to the new PR.
+    - the official qubes-docs
+    - project's forked qubes-doc
+    - the project's 'content'
+- further discussion - if any - happens in the PR.
+- if the issue is not deemed fit for inclusion in any of the repos, the issue is closed indicating the reason of the content/suggestion/... rejection