add CONTRIBUTING.md

Author: czheo

CONTRIBUTING.md

@@ -0,0 +1,24 @@
+# CONTRIBUTION
+
+Thank you for being interested in contributing to this project.
+
+# Run test suites
+
+Clone this repository
+
+```
+git clone https://github.com/czheo/syntax_sugar_python
+```
+
+Install syntax_sugar as an editable package
+
+```
+cd syntax_sugar_python
+pip install -e .
+```
+
+Run tests
+
+```
+python setup.py pytest
+```