[Small Fix] Added Logo width on Contributing.md [Documentation]

[molecula451]

Description

There is a tiny issue on our lovely 'Logo' on the contributing.md and it's happening in all screen sizes.

While the logo on contributing.md it's looking pretty good on Github. It's not in the actual deployed document site https://docs.gitcoin.co/mk_contributors/

It has an automatic width of 238 x 238. Which is causing the conflict.

Refers/Fixes

Since it looks like we want our logo there to be bigger in size. We have added specific width in the contributing.md so it makes the logo look as we want

Issue: #4943

Testing

• All Browsers, And all sizes.

[codecov]

Codecov Report

Merging #5594 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5594      +/-   ##
==========================================
+ Coverage   30.26%   30.27%   +0.01%     
==========================================
  Files         247      247              
  Lines       21142    21165      +23     
  Branches     3060     3065       +5     
==========================================
+ Hits         6398     6408      +10     
- Misses      14468    14481      +13     
  Partials      276      276

Impacted Files	Coverage Δ
app/quests/views.py	25.99% <0%> (-1.2%)	⬇️
app/quests/models.py	42.85% <0%> (-0.93%)	⬇️
app/dashboard/views.py	12.87% <0%> (-0.02%)	⬇️
app/dashboard/models.py	56.28% <0%> (ø)	⬆️
app/dashboard/embed.py	31.6% <0%> (+3.44%)	⬆️

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[molecula451]

@thelostone-mc Take a look my buddy.

[molecula451]

I am seeing this issue it's still persisent on the website documentation. Anyone reviewing? @thelostone-mc @owocki