Update Dangerfile

Dangerfile

@@ -1,6 +1,9 @@
 
 # Ensure there is a summary for a pull request
 fail 'Please provide a summary in the Pull Request description' if github.pr_body.length < 5
+ 
+# Warn if pull request is not updated
+warn 'Please update the Pull Request title to contain the script name' if github.pr_title.include? 'Update README.md'
 
 # Warn when there are merge commits in the diff
 warn 'Please rebase to get rid of the merge commits in this Pull Request' if git.commits.any? { |c| c.message =~ /^Merge branch 'master'/ }