Update README.md

Co-authored-by: Tim Flannagan <[email protected]>

Author: perdasilva

README.md

@@ -172,7 +172,7 @@ See [reporting bugs][bug_guide] for details about reporting any issues.
 
 ## Reporting flaky tests
 
-See [reporting flaky tests](flaky_test_guide) for details about reporting flaky tests
+See [reporting flaky tests][flaky_test_guide] for details about reporting flaky tests.
 
 ## License