Update _index.md

[itsCheithanya]

What type of PR is this? I've fixed some documentation typos which I found needs to be corrected

What this PR does / why we need it:

Which issue(s) this PR fixes: Documentation changes. Fixes #

Test Report Added?:

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line: /kind TESTED /kind NOT-TESTED

Test Report:

Special notes for your reviewer:

[itsCheithanya]

Is SODA participating in hacktoberfest? If so could this PR be added the hacktoberfest label !?