Added Text Highlighting

[aashishxetri5]

Description Text Highlighting applies a bright background color to the texts. Fixes #25

Checklist:

• [x] I have performed a self-review of my changes
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings

[aashishxetri5]

Hacktoberfest 2022 🌳

[aashishxetri5]

Hi @atapas, Please give your precious time to review my PR.

[aashishxetri5]

@atapas , @Murtaza-arif @coder-oj Anyone mind reviewing my PR? Its been here for quite a time now and also has no conflicts with merging.