Add links

.github/pull_request_template.md

@@ -1,7 +1,7 @@
 <!--
 
 ## Describe your changes
-Please refer to an issue here or describe the change thoroughly in your PR.
+Please refer to an issue here or describe the change thoroughly in your PR and check the boxes which are applicable. 
 
 This includes:
 - Resolved or fixed issue: <-- ✍️ Add GitHub issue number in format `#0000` 
@@ -21,14 +21,16 @@ This includes:
 
 ## If it's a code change please check the boxes which are applicable
 - [ ] For the main program: My edits contain no tabs, indentation is five spaces and any line endings do not contain any blank chars
-- [ ] I've read CONTRIBUTING.md and Coding_Convention.md and my code follows that
+- [ ] I've read [CONTRIBUTING.md](https://github.com/testssl/testssl.sh/blob/3.3dev/CONTRIBUTING.md)
+- [ ] My code follows [Coding_Convention.md](https://github.com/testssl/testssl.sh/blob/3.3dev/Coding_Convention.md) 
 - [ ] I have tested this __fix__ or __improvement__ against >=2 hosts and I couldn't spot a problem
 - [ ] I have tested this __new feature__ against >=2 hosts which show this feature and >=2 host which does not (in order to avoid side effects) . I couldn't spot a problem
 - [ ] For the __new feature__ I have made corresponding changes to the documentation and / or to ``help()``
-- [ ] If it's a bigger change: I added myself to CREDITS.md (alphabetical order) and the change to CHANGELOG.md
+- [ ] If it's a bigger change: I added myself to [CREDITS.md](https://github.com/testssl/testssl.sh/blob/3.3dev/CREDITS.md) (alphabetical order) and the change to [CHANGELOG.md](https://github.com/testssl/testssl.sh/blob/3.3dev/CHANGELOG.md)
 
 ## AI section
 - [ ] My contribution does not include any AI-generated content
 - [ ] My contribution includes AI-generated content, as disclosed below:
     - AI Tools: `[e.g. GitHub CoPilot, JetBrains Junie, VS Code plugin <NAME> etc.]`
     - LLMs and versions: `[e.g. GPT-A.B, Claude <NAME> A.B, Gemini A.B <NAME>, Qwen<B>-Coder, DeepSeek-<A>  etc.]`
+