Merge branch 'fix-typos' into 'master'

Fix types comment

See merge request gitlab-org/gitlab-ce!23107

app/assets/javascripts/files_comment_button.js

 /* Developer beware! Do not add logic to showButton or hideButton
- * that will force a reflow. Doing so will create a signficant performance
+ * that will force a reflow. Doing so will create a significant performance
  * bottleneck for pages with large diffs. For a comprehensive list of what
  * causes reflows, visit https://gist.github.com/paulirish/5d52fb081b3570c81e3a
  */

app/workers/build_finished_worker.rb

@@ -13,7 +13,7 @@ class BuildFinishedWorker
       BuildTraceSectionsWorker.new.perform(build.id)
       BuildCoverageWorker.new.perform(build.id)
 
-      # We execute that async as this are two indepentent operations that can be executed after TraceSections and Coverage
+      # We execute that async as this are two independent operations that can be executed after TraceSections and Coverage
       BuildHooksWorker.perform_async(build.id)
       ArchiveTraceWorker.perform_async(build.id)
     end

app/workers/process_commit_worker.rb

 # frozen_string_literal: true
 
-# Worker for processing individiual commit messages pushed to a repository.
+# Worker for processing individual commit messages pushed to a repository.
 #
 # Jobs for this worker are scheduled for every commit that is being pushed. As a
 # result of this the workload of this worker should be kept to a bare minimum.