Add sentence end charcter

Author: lunny

options/locale/locale_en-US.ini

@@ -1296,7 +1296,7 @@ pulls.update_not_allowed = You are not allowed to update branch
 pulls.outdated_with_base_branch = This branch is out-of-date with the base branch
 pulls.closed_at = `closed this pull request <a id="%[1]s" href="#%[1]s">%[2]s</a>`
 pulls.reopened_at = `reopened this pull request <a id="%[1]s" href="#%[1]s">%[2]s</a>`
-pulls.merge_instruction_hint = `You can also view <a class="show-instruction">command line instructions</a>`
+pulls.merge_instruction_hint = `You can also view <a class="show-instruction">command line instructions</a>.`
 pulls.merge_instruction_step1 = Step 1: 
 pulls.merge_instruction_step1_desc = From your project repository, check out a new branch and test the changes.
 pulls.merge_instruction_step2 = Step 2: