menu item missing a text alternative

[StephDriver]

The facebook, twitter, linked in sharing menu items are shows as an icon only without any alt-text.

https://www.iastatedigitalpress.com/farmreports/article/id/12984/

(and Twitter one probably needs to be updated!)
this also applies to other icons being used, such as the cite and print options.

The images are missing alt-text, and as they are links, this also means the links have no text description as to where they are going (which was a separate site improve report on link missing a text alternative).

this includes the expanding menu icon for narrower screens:

[ajrbyers]

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