Update THEMES.md

THEMES.md

@@ -14,7 +14,7 @@ Version 1.7 brings basic support for themes.
 
 ## Available themes
 
-* See [https://github.com/sanderland/katrain/blob/master/themes/](here) for available themes. 
+* See [here](https://github.com/sanderland/katrain/blob/master/themes/) for available themes. 
 * To install a theme, simply unzip the theme.zip to your .katrain folder. 
   * On windows you can find it in C:\Users\you\.katrain and on linux in ~/.katrain.
   * When in doubt, the general settings dialog will also show the location.