Add missing fields
Update sha256sum

Changes the old broken link with the new link to
summerofcode.withgoogle.com

Closes coala#642

The mentor list for some of the projects was
outdated. This updates the list of those mentors.

The commit marks most of the projects initiatives
with a `GSoC<year>` replacing `GSoC` in order to
display mentors year wise.

Closes coala#777

This will add Difficulty row in projects section

Closes coala#786

This fixes the close position and
changes 'Filter Projects' <h6> to <h4>.

Fixes coala#785

This fixes 'file', 'be same' and
'Similiarly' typos.

Closes coala#773

This will remove trailing whitespaces and fix its inconsistency

Fixes coala#795

This will fix randomly redirecting issue of projects URL
by calling sortProjects after the query is done,
remove hard-coded redirection of pyFlakes and
change if condition to check for project's path
instead of project name.

Fixes coala#793

This is the report for GSoC 2021 project
'GitMate for coala' by pilgrim2308.

This will add the Project Report for "Microfarm for Everybody"
A.K.A "Django Microfarm" done by pra17dod during the GSoC' 2021 period.

Closes coala#801