Repository Object - Deprecated Fields

[OhZedTee]

As discussed in Issue #1897, Github's official statement is as follows:

.
.
.

What's going on here is this: sometimes when we deprecate a field, 
we keep both the new field and the deprecated field in order to prevent 
introducing breaking changes.

Although I can't provide a lot of context for why, 
Repository.open_issues is the deprecated field, 
and Repository.open_issues_count is the current field.

Interestingly, both Repository.watchers and Repository.watchers_count 
are deprecated, and the current field is actually Repository.stargazers_count.

In short: what used to be known as "Watching" was changed to mean "Starring".
As a result of that, watchers, watchers_count and stargazers_count all 
correspond to the number of users that have starred a repository, 
while subscribers_count corresponds to the number of watchers.

A bit more context on the watcher/stargazer/subscriber change can be found here:

https://developer.github.com/changes/2012-09-05-watcher-api/

Please take a look and let me know if you'd like me to make any changes to the documentation.

[codecov]

Codecov Report

Merging #1952 (0dbc7e0) into master (c26abbd) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1952   +/-   ##
=======================================
  Coverage   97.65%   97.65%           
=======================================
  Files         105      105           
  Lines        6786     6786           
=======================================
  Hits         6627     6627           
  Misses         86       86           
  Partials       73       73           

Impacted Files	Coverage Δ
github/repos.go	98.70% <ø> (ø)

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[OhZedTee]

@gmlewis Here is the PR we chatted about for documenting the Repository object's deprecated fields

[gmlewis]

Thank you, @OhZedTee !
LGTM.
Merging.