Update peps/pep-0776.rst

Co-authored-by: Brett Cannon <brett@python.org>

Author: JelleZijlstra

peps/pep-0776.rst

@@ -280,7 +280,7 @@ uses two different approaches for packages:
   environment mechanism to work. Pyodide virtual environments contain a patched
   copy of pip and a custom ``pip.conf`` so that pip will install Pyodide wheels.
   On startup the Pyodide ``python`` cli will preload all Emscripten dynamic
-  libraries that are in the sitee-packages directory.
+  libraries that are in the site-packages directory.
 
 
 Console and Interactive Usage