Merge pull request #828 from PhilJay/master

Update Readme

README.md

@@ -92,7 +92,7 @@ If you are having questions or problems, you should:
  - Study the (Still incomplete [![Doc-Percent](https://img.shields.io/cocoapods/metrics/doc-percent/Charts.svg)](http://cocoadocs.org/docsets/Charts/)) [**Pod-Documentation**](http://cocoadocs.org/docsets/Charts/)
  - Search or open questions on [**stackoverflow**](http://stackoverflow.com/questions/tagged/ios-charts) with the `ios-charts` tag
  - Search [**known issues**](https://github.com/danielgindi/ios-charts/issues) for your problem (open and closed)
- - Create new issues (please **search known issues before**, do not create duplicate issues)
+ - Create new issues (please :fire: **search known issues before** :fire:, do not create duplicate issues)
 
 
 Features