Fix homebrew installation

[chulkilee]

gitbatch is now at homebrew-core and isacikgoz/taps is gone

https://github.com/Homebrew/homebrew-core/blob/master/Formula/gitbatch.rb

[codecov[bot]]

Codecov Report

Merging #111 (6309cec) into master (9608c00) will decrease coverage by 1.71%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #111      +/-   ##
==========================================
- Coverage   44.58%   42.86%   -1.72%     
==========================================
  Files          29       29              
  Lines        1440     1297     -143     
==========================================
- Hits          642      556      -86     
+ Misses        684      629      -55     
+ Partials      114      112       -2     

Impacted Files	Coverage Δ
internal/command/cmd.go	63.63% <0.00%> (-4.37%)	:arrow_down:
internal/errors/errors.go	5.00% <0.00%> (-4.10%)	:arrow_down:
internal/app/config.go	67.44% <0.00%> (-3.99%)	:arrow_down:
internal/command/add.go	34.21% <0.00%> (-3.89%)	:arrow_down:
internal/app/files.go	73.68% <0.00%> (-3.59%)	:arrow_down:
internal/git/authentication.go	71.42% <0.00%> (-3.58%)	:arrow_down:
internal/git/remote.go	76.47% <0.00%> (-3.53%)	:arrow_down:
internal/job/queue.go	69.38% <0.00%> (-3.50%)	:arrow_down:
internal/command/merge.go	45.16% <0.00%> (-3.33%)	:arrow_down:
internal/command/status.go	56.60% <0.00%> (-3.08%)	:arrow_down:
... and 19 more

---

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[chulkilee]

Ping @isacikgoz - not sure why README.md changes reduced the coverage 😄

[isacikgoz]

@chulkilee thanks for the heads up. I don't know why codecov reported this :)