finish #859 - remove links from .github/PULL_REQUEST_TEMPLATE.md

Author: sammefford

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,7 +1,7 @@
 So we can incorporate your pull request, please share the following:
 * What issue are you addressing with this pull request?
-* Are you modifying the correct branch? (See [CONTRIBUTING.md](CONTRIBUTING.md))
-* Have you run unit tests? (See [CONTRIBUTING.md](CONTRIBUTING.md))
+* Are you modifying the correct branch? (See CONTRIBUTING.md)
+* Have you run unit tests? (See CONTRIBUTING.md)
 * Version of MarkLogic Java Client API (see Readme.txt)
 * Version of MarkLogic Server (see admin gui on port 8001)
 * Java version (`java -version`)