Merge pull request #100 from DavidePastore/patch-1

Add reference to Slim Logger in README.markdown

Author: silentworks

README.markdown

@@ -5,6 +5,8 @@ you quickly write simple yet powerful web applications.
 
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 #### For custom views we are now recommending using the [Slim Views](https://github.com/codeguy/Slim-Views) repo instead. We are simplifying the amount of views we officially support and will be splitting up the Slim Extras repo into smaller chunks.
+
+#### For custom loggers we are now recommending using the [Slim Logger](https://github.com/codeguy/Slim-Logger) repo instead.
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 ## Custom Views