docs: add more explanations to developer.md

DEVELOPERS.md

@@ -39,14 +39,18 @@ Most of what is written in the specification is also explained in the following
 
 ### Rules
 
-- Use the imperative mood in the subject line.
+- Use the imperative mood in the subject line. 
+  - For example: "Fix bug" instead of "Fixed bug" or "Fixes bug".
 - Do not capitalize the subject line.
 - Do not end the subject line with a period.
-- Use the body to explain the "what" and "why" of the commit, not the "how".
+- Use the body to explain the "what" and "why" of the commit, not the "how". 
+  - For example: "This commit fixes a bug" instead of "This commit fixes a bug by changing the code in this way".
 - If the commit fixes an issue, add "Closes #issue-number" to the body.
   - In case there are multiple issues, add "Closes #issue-number, Closes #issue-number, ..." to the body.
 
-The header of your commit should be your pull request title, and the body should be your pull request description.
+> The header of your commit should be your pull request title, and the body should be your pull request description.
+
+> See the [correct examples](#correct-examples) and [incorrect examples](#incorrect-examples) for more information.
 
 ### Types