Change title

Author: hoodmane

peps/pep-0818.rst

@@ -1,5 +1,5 @@
 PEP: 818
-Title: Upstreaming the Pyodide JavaScript Foreign Function Interface
+Title: Adding the Core of the Pyodide Foreign Function Interface to Python
 Author: Hood Chatham <roberthoodchatham at gmail.com>
 Sponsor: Łukasz Langa <lukasz at python.org>
 Discussions-To: https://discuss.python.org/t/pep-818-upstreaming-the-pyodide-ffi/105530