diff --git a/Packages/src/CONTRIBUTING.md b/Packages/src/CONTRIBUTING.md
index 85176fb..cb0dd4b 100644
--- a/Packages/src/CONTRIBUTING.md
+++ b/Packages/src/CONTRIBUTING.md
@@ -19,11 +19,24 @@ When fixing a bug it is fine to submit a pull request right away.
 
 Steps to be performed to submit a pull request:
 
-1. Fork the repository and create your branch from `develop`.
-2. If you have fixed a bug or added code that should be tested, add tests.
-3. Click `Window > Generals > Test Runner` to test
-4. Commit with a massage based on [Angular Commit Message Conventions](https://gist.github.com/stephenparish/9941e89d80e2bc58a153).
-5. Fill out the description, link any related issues and submit your pull request.
+1. Fork the repository.
+2. Clone the repository.
+3. Checkout `develop` branch.
+4. Develop the package.
+5. Test the package with the test runner (`Window > Generals > Test Runner`).
+6. Commit with a message based
+   on [Angular Commit Message Conventions](https://gist.github.com/stephenparish/9941e89d80e2bc58a153) as follows:
+
+    - `fix:` fix a bug
+    - `feat:` new feature
+    - `docs:` changes only in documentation
+    - `style:` changes only in formatting, white-space, etc
+    - `refactor:` changes only in code structure (extract method, rename variable, move method, etc)
+    - `perf:` changes only in code performance
+    - `test:` add or update tests
+    - `chore:` changes to the build process or auxiliary tools and libraries such as documentation generation
+
+7. Create a pull request on GitHub. Fill out the description, link any related issues and submit your pull request.
 
 #### License
 
diff --git a/Packages/src/README.md b/Packages/src/README.md
index 6e9c472..5053177 100755
--- a/Packages/src/README.md
+++ b/Packages/src/README.md
@@ -154,7 +154,7 @@ Issues are incredibly valuable to this project:
 ### Pull Requests
 
 Pull requests offer a fantastic way to contribute your ideas to this repository.  
-Please refer to [CONTRIBUTING.md](/../../blob/main/CONTRIBUTING.md) for guidelines.
+Please refer to [CONTRIBUTING.md](/../../blob/main/CONTRIBUTING.md) and [develop branch](https://github.com/mob-sakai/UpmGitExtension/tree/develop) for guidelines.
 
 ### Support
 
diff --git a/README.md b/README.md
index 9da0d05..aed2f7e 100755
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@
     - `test:` add or update tests
     - `chore:` changes to the build process or auxiliary tools and libraries such as documentation generation
 
-7. Create a pull request on GitHub.
+7. Create a pull request on GitHub. Fill out the description, link any related issues and submit your pull request.
 
 For details, refer to [CONTRIBUTING](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/CONTRIBUTING.md)
 and [CODE_OF_CONDUCT](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/CODE_OF_CONDUCT.md).