fixed typo in docs
fixed typo in docs

shpytalenko/google-api-ruby-client-samples,shpytalenko/google-api-ruby-client-samples,pacuna/google-api-ruby-client-samples,neomadara/google-api-ruby-client-samples,DouglasAllen/google-api-ruby-client-samples,kjubichan/google-api-ruby-client-samples,mishin/google-api-ruby-client-samples,neomadara/google-api-ruby-client-samples,hanpanpan200/google-api-ruby-client-samples,neomadara/google-api-ruby-client-samples,kjubichan/google-api-ruby-client-samples,mishin/google-api-ruby-client-samples,shpytalenko/google-api-ruby-client-samples,hanpanpan200/google-api-ruby-client-samples,pacuna/google-api-ruby-client-samples,kjubichan/google-api-ruby-client-samples,mishin/google-api-ruby-client-samples,hanpanpan200/google-api-ruby-client-samples,pacuna/google-api-ruby-client-samples,DouglasAllen/google-api-ruby-client-samples,DouglasAllen/google-api-ruby-client-samples