typo (#291)

Author: blueyed

neovim/plugin/decorators.py

@@ -14,7 +14,7 @@
 def plugin(cls):
     """Tag a class as a plugin.
 
-    This decorator is required to make the a class methods discoverable by the
+    This decorator is required to make the class methods discoverable by the
     plugin_load method of the host.
     """
     cls._nvim_plugin = True