fix readme link

Varbin · Varbin · commit be3ca694b4c3 · 2018-05-11T22:03:41.000+02:00
diff --git a/README.rst b/README.rst
@@ -6,7 +6,7 @@ This is a cryptographic library implementing the camellia cipher in python.
 
 `API-reference`_
 
-.. API-reference: https://sbiewald.de/docs/python-camellia/
+.. _API-reference: https://sbiewald.de/docs/python-camellia/
 
 .. code:: python
 
