Added PR template

Author: Yudai FUJIWARA

.github/pull_request_template.md

@@ -0,0 +1,23 @@
+# \<Title of Your Pull Request>
+## What's this Pull Request for?
+Choose one or more of the following items.
+
+- [ ] Bug fix
+- [ ] Add/Remove feature
+- [ ] Cleaning code (including optimization/typo fix)
+- [ ] Others
+
+Please explain the detail here:
+\<Detail of your PR>
+
+## What have you done so far?
+Tell me what you've tested to assure your change is right.
+
+- [ ] All tests passed on your machine (`python -m unittest`)
+- [ ] Added test cases for new feature
+- [ ] Nothing / Test not required
+
+(It's not mandatory to check even one of them, but test cases make it easy for the author to review your PR.)
+
+## Comment
+\<Your Comment (if any)>

README.md

@@ -72,8 +72,9 @@ Run `pip install ptrlib` or `python setup.py install`.
 [ptr-yudai](https://github.com/ptr-yudai)
 
 ## Contributor
+Feel free to make a pull request / issue :)
 
 - [theoremoon](https://github.com/theoremoon)
-  - Added several cryptography functions
+  - Added/fixed several cryptography functions
   - Added buffering of Socket/Process
   - Added status check (CI test)