Added notes about gitflow for checking PRs
- A travis build is triggered for each PR
- CI will fail if code is not proparly go formatted or one or more go vet check is failing.
- https://travis-ci.org/spacemeshos/go-spacemesh
+
+
+### Checking Out and Testing Pull Requests
+
+- Open up the .git/config file and add a new line under [remote "origin"]:
+
+- ```fetch = +refs/pull/*/head:refs/pull/origin/*```
+
+Now you can fetch and checkout any pull request so that you can test them:
+
+- Fetch all pull request branches
+```git fetch origin```
+
+- Checkout out a given pull request branch based on its number
+```git checkout -b 999 pull/origin/999```
\ No newline at end of file
