Fix PEP reference in README (PyMySQL#514)

cjgu · methane · commit 40f6a706144a · 2016-09-05T18:58:01.000+09:00
diff --git a/README.rst b/README.rst
@@ -22,10 +22,11 @@ This package contains a pure-Python MySQL client library. The goal of PyMySQL
 is to be a drop-in replacement for MySQLdb and work on CPython, PyPy and IronPython.
 
 NOTE: PyMySQL doesn't support low level APIs `_mysql` provides like `data_seek`,
-`store_result`, and `use_result`. You should use high level APIs defined in PEP 294.
-But some APIs like `autocommit` and `ping` are supported because PEP 294 doesn't cover
+`store_result`, and `use_result`. You should use high level APIs defined in `PEP 249`_.
+But some APIs like `autocommit` and `ping` are supported because `PEP 249`_ doesn't cover
 their usecase.
 
+.. _`PEP 249`: https://www.python.org/dev/peps/pep-0249/
 
 Requirements
 -------------
