Merge branch 'docs-related-issues-clarity' into 'master'

Update related_issues.md for grammar/clarity.

See merge request gitlab-org/gitlab-ee!6037

doc/user/project/issues/related_issues.md

@@ -10,9 +10,9 @@ The relationship only shows up in the UI if the user can see both issues.
 
 ## Adding a related issue
 
-You can relate one issue to the other by clicking the issue count badge "+" button
-in the header of the related issue block. Then use the input that will appear
-where you can type in the issue reference or paste in a link to an issue.
+You can relate one issue to another by clicking the related issues "+" button
+in the header of the related issue block. Then input the issue reference number
+or paste in a link to the issue.
 
 Valid references will be added to a temporary list that you can review.
 When ready, click the green "Add related issues" button to submit.
@@ -21,15 +21,15 @@ When ready, click the green "Add related issues" button to submit.
 
 ## Removing a related issue
 
-In the related issues block, click the "x" icon on the right-side of every issue
-token. Because of the bi-directional relationship, it will no longer appear in
-either issue.
+In the related issues block, click the "x" icon on the right-side of each issue
+token that you wish to remove. Due to the bi-directional relationship, it
+will no longer appear in either issue.
 
 ![Removing a related issue](img/related_issues_remove.png)
 
 Please access our [permissions] page for more information.
 
-As an addition, you are also able to manage related issues through [our API].
+Additionally, you are also able to manage related issues through [our API].
 
 [ee]: https://about.gitlab.com/products/
 [ee-1797]: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/1797