Need to update social media icons on webpages

[smk78]

The bottom of SasView webpages features scial media icons

• the Twitter icon needs changing to the new X brand
• an icon needs creating and adding for LinkedIn

[smk78]

Changed base URL for linkedin to that for a company

[smk78]

Changed Font Awesome tag for twitter icon from that for a bird to that for the X in _data/SocialNetworks.yml
See https://fontawesome.com/icons/x-twitter?f=brands&s=solid

[smk78]

Uncommented linkedin entry in _config.yml

[smk78]

Point _includes/social_share.html at new twitter icon

[smk78]

Try this instead

Interesting, that got rid of the bird!

[smk78]

Have a horrible suspicion that the version of Font Awesome used by Beautiful Jekyll would need updating to access the new twitter X icon

So let's use a cheat...

This at least gets us