New page for 6.3

• Create a new article for the Link Control page.
• Make sure the URL slug under Permalink is: link-editing

Update for 6.3

• Force disable suggestions until URL field is dirty in Link Control 51354
• Improve search vs direct URL entry detection in Link Control 51011
• Visually hide the LinkControl initial/results heading 50977
• Use "Save" instead of "Apply" in Link Control 50964
• Use checkbox for Open in new tab within Link Control 50961
• Reinstate Text control outside of settings in Link Control 50957
• Link Control require user to manually submit any changes 50668
• Add support for text only labels 47930
• Add settings "drawer" to Link Control 47328

General

• Make sure all screenshots are relevant to the latest version
• Make sure videos, if any, are up to date
• Add ALT tags for the images
• Make sure the headings are in sentence case
• Convert all reusable blocks to a ‘regular block’.
• Update the changelog at the end of the article

##WHY?
The way the Link Editing feature works is going to change in 6.3 and this is going to affect several articles. It is easier to maintain the updates in one place and link to this page from other articles.