Add test cases for JSON resource marshaling

[vaibhavgholap23]

Hi creators,
I have added test case for :
HovercardOptions struct
under Helps:#55 issue

I have followed all the guidelines to contribute in this repository.
Please revert in case of any changes needed.
I am first time contributor of Hackoctober , It will be great if you review & accept my contribution.

[codecov]

Codecov Report

Merging #2548 (6823d5e) into master (330d92d) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2548      +/-   ##
==========================================
- Coverage   98.03%   97.97%   -0.07%     
==========================================
  Files         122      123       +1     
  Lines       10705    10813     +108     
==========================================
+ Hits        10495    10594      +99     
- Misses        144      150       +6     
- Partials       66       69       +3     

Impacted Files	Coverage Δ
github/orgs_custom_roles.go	94.23% <0.00%> (-5.77%)	⬇️
github/repos.go	98.67% <0.00%> (ø)
github/enterprise_actions_runners.go	100.00% <0.00%> (ø)
github/users_ssh_signing_keys.go	89.47% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[vaibhavgholap23]

Hi creators, I have added test case for : HovercardOptions struct under Helps:#55 issue

I have followed all the guidelines to contribute in this repository. Please revert in case of any changes needed. I am first time contributor of Hackoctober , It will be great if you review & accept my contribution.

[vaibhavgholap23]

@andygrunwald pls accept my PR for Hackoctober fest contribution.

[andygrunwald]

@vaibhavgholap23 Not sure how I can help here.
I am not part of the maintainer team.

[gmlewis]

LGTM