Correct attribution links formating in CoC

[ghost]

Fixes #671

Checklist

• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the [Contribution Guide] and my PR follows them.
• I updated my branch with the master branch.
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation about the functionality in the appropriate .md file
• I have added in line documentation to the code I modified

Short description of what this PR does:

• Change attribution links into bullet points to match CoC in other Sendgrid repos.

If you have questions, please send an email to SendGrid, or file a GitHub Issue in this repository.

[SendGridDX]

All committers have signed the CLA.

[codecov]

Codecov Report

Merging #672 into v4 will decrease coverage by 49.06%.
The diff coverage is 69.54%.

@@             Coverage Diff             @@
##               v4     #672       +/-   ##
===========================================
- Coverage   84.35%   35.28%   -49.07%     
===========================================
  Files          36       39        +3     
  Lines         965     1057       +92     
  Branches      107      137       +30     
===========================================
- Hits          814      373      -441     
- Misses         93      658      +565     
+ Partials       58       26       -32

Impacted Files	Coverage Δ
sendgrid/sendgrid.py	35.71% <ø> (-50.01%)	⬇️
sendgrid/helpers/mail/personalization.py	0% <0%> (-93.06%)	⬇️
sendgrid/helpers/endpoints/ip/unassigned.py	0% <0%> (ø)
sendgrid/version.py	0% <0%> (ø)
sendgrid/helpers/stats/__init__.py	100% <100%> (ø)
sendgrid/helpers/stats/stats.py	82.19% <82.19%> (ø)
sendgrid/helpers/mail/to_email.py	0% <0%> (-100%)	⬇️
sendgrid/helpers/mail/tracking_settings.py	0% <0%> (-96.97%)	⬇️
sendgrid/helpers/mail/substitution.py	0% <0%> (-94.12%)	⬇️
sendgrid/helpers/mail/section.py	0% <0%> (-94.12%)	⬇️
... and 30 more

---

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[thinkingserious]

Hello @PyroclasticMayhem,

Could you please merge this against our v4 branch? Thank you!

With Best Regards,

Elmer

[thinkingserious]

Hello @PyroclasticMayhem,

Thanks again for the PR!

It's HACKTOBERFEST! We want to show our appreciation by sending you some special Hacktoberfest swag. If you have not already, could you please fill out this form so we can send it to you? Thanks!

Team SendGrid DX

[ghost]

@thinkingserious I have made the requested changes.

[misterdorm]

You'll need to rebase from the v4 branch, not merging it into your existing branch (which contains everything from master.) Please rebase as such. Thanks!

[thinkingserious]

Hello @PyroclasticMayhem,

Thanks again for the PR!

We noticed that you have earned 2 out of the 5 points needed to receive glorious SendGrid Hacktoberfest swag.

Please take a moment to checkout this link to find more issues to get you past the required threshold.

Also, please be sure that you have officially registered here.

Thank you and Happy Hacktobering!

Team SendGrid DX