Better contributing text

docs/CONTRIBUTING.md

@@ -10,9 +10,20 @@ You can contribute by:
 You can do so by:
 
 - Sending an email to `[email protected]`
-- Creating [an Issue](https://github.com/open-science-uppsala/open_science_uppsala/issues)
-- Creating a Pull Request
+- For questions, you can [create an issue](https://github.com/uppsala-makerspace/loerdagskurser/issues)
+- Textual changes go via pull requests.
+  Whatever these are, these are created when clicking the 'Edit page' icon
+  located at the top-right of each page.
+
+???- question "Where is the 'Edit page' icon?"
+
+    The 'Edit page' icon is
+    located at the top-right of each page.
+
+    ![The 'Edit page' icon](edit_page_icon.png)
 
 There will be a tendency to accept your contributions
 when it helps achieve this website's goal,
 which is to help people understand what the Saturday courses are.
+
+This GitHub repository follows the [Contributor Covenant Code of Conduct](CODE_OF_CONDUCT.md).