Feat/blog article link color

[shah-tejas]

Description

Changes color of links in Blog articles to orange (the brand color) Also, made the links open in new tab, since they would be external links. If this is not required, I can revert it :)

Fixes https://trello.com/c/UxDQW95Q/261-link-colour-on-blog

Checklist:

• [:fire:] I have commented my code, particularly in hard-to-understand areas
• [:fire:] I have reviewed the 'files changed' tab on github to ensure all changes are expected
• [:fire:] I have added someone to review the pr

[shah-tejas]

Link colour on blog

[JElgar]

Absolutely beautiful