Make change log submitting fragmented

to avoid merge conflicts on CHANGELOG.md that prevent automatic merging

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,10 @@
+## Pull Request Checklist
+
+[//]: # (Use `~~ -[ ] ... ~~` markdown deletion syntax to cross out unrelated entries)
+
+- [ ] A new fragment is added in `./doc/news` that describes what is new (refer to issue #174).
+- [ ] The unit test suite passes at the latest commit of this PR branch.
+
+## Describe what you have changed in this PR
+
+[//]: # (See commit messages.)

doc/CHANGELOG.md

@@ -1,5 +1,3 @@
-Please read [this issue for guide for modifying this document](https://github.com/khanshoaib3/minecraft-access/pull/155)
-
 Release v1.3.0 (2023-09)
 ---------------------------
 
@@ -16,7 +14,7 @@ Release v1.3.0 (2023-09)
 
 ### Refactoring, Documentation and Chores
 
-* Rewrite big README into [manual structure](https://github.com/khanshoaib3/minecraft-access/blob/1.20/README.md) for better readability.
+* Rewrite big README into [manual structure](https://github.com/khanshoaib3/minecraft-access/blob/1.20/README.md) for better readability. [#134](https://github.com/khanshoaib3/minecraft-access/issues/134)
 
 Release v1.2.2 (2023-09-12)
 ---------------------------

doc/news/CHANGE_FRAGMENT_TEMPLATE.md

@@ -0,0 +1,9 @@
+### New Features
+
+### Feature Changes
+
+### Bug Fixes
+
+### Dependencies Changes
+
+### Refactoring, Documentation and Chores

doc/news/change_log_fragment.md

@@ -0,0 +1,11 @@
+### New Features
+
+### Feature Changes
+
+### Bug Fixes
+
+### Dependencies Changes
+
+### Refactoring, Documentation and Chores
+
+* Now the change log should be added as a small independent markdown file (fragment) under `./doc/news`.