Changed --filenames-as-tags prefix to #, added -# as short form and updated docs
diff --git a/include/catch_runner.hpp b/include/catch_runner.hpp
index 4234f60..ac7a914 100644
--- a/include/catch_runner.hpp
+++ b/include/catch_runner.hpp
@@ -120,7 +120,7 @@
             if( lastDot != std::string::npos )
                 filename = filename.substr( 0, lastDot );
             
-            tags.insert( "@" + filename );
+            tags.insert( "#" + filename );
             setTags( test, tags );
         }
     }