Merge pull request #142 from swiftlang/parispittman-patch-2

Update README.md

Author: shahmishal

README.md

@@ -35,3 +35,19 @@ Here is a partial list of tests in the repository:
 | test-static-lib          | Compile multiple source files into a static library              |
 | test-xctest-package      | Build a package that imports XCTest                              |
 
+
+## Contributing 
+
+Contributions to this repo are welcomed and encouraged! Please see the
+[Contributing to Swift guide](https://swift.org/contributing/).
+
+To be a truly great community, [Swift.org](https://swift.org/) needs to welcome
+developers from all walks of life, with different backgrounds, and with a wide
+range of experience. A diverse and friendly community will have more great
+ideas, more unique perspectives, and produce more great code. We will work
+diligently to make the Swift community welcoming to everyone.
+
+To give clarity of what is expected of our members, Swift has adopted the
+code of conduct defined by the Contributor Covenant. This document is used
+across many open source communities, and we think it articulates our values
+well. For more, see the [Code of Conduct](https://swift.org/code-of-conduct/).