fixed index out of range of the matches at swagger.go:71

[Dysar]

Removed possible runtime error

[codecov]

Codecov Report

Merging #31 into master will increase coverage by 1.65%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #31      +/-   ##
==========================================
+ Coverage   62.79%   64.44%   +1.65%     
==========================================
  Files           1        1              
  Lines          43       45       +2     
==========================================
+ Hits           27       29       +2     
  Misses         14       14              
  Partials        2        2              

Impacted Files	Coverage Δ
swagger.go	64.44% <100.00%> (+1.65%)	⬆️

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[ubogdan]

@Dysar Is this PR related to any open issue? I'm asking you because we appreciate every contribution but at the same time
it's essential to discuss the solution before writing an implementation.

[ubogdan]

We wont accept a PR based on 3'rd party packages like github.com/Dysar/http-swagger