Fix single backticks

Author: hoodmane

peps/pep-0776.rst

@@ -265,10 +265,10 @@ Pyodide uses the ``ZipImporter`` approach in every runtime. Python uses the
 NODEFS approach when run with node and the ``ZipImporter`` approach for the web
 example. We will continue with this approach.
 
-The `ZipImporter` provides a clean resolution for a bootstrapping problem: The
+The ``ZipImporter`` provides a clean resolution for a bootstrapping problem: The
 Python runtime is capable of unpacking a wide variety of archive formats, but
 the Python runtime is not ready to use until the standard library is already
-available. Since `zipimport.py` is a frozen module, it avoids these problems.
+available. Since ``zipimport.py`` is a frozen module, it avoids these problems.
 All of the other approaches solve the bootstrapping problem by setting up the
 standard library using JavaScript.
 
@@ -284,11 +284,11 @@ uses two different approaches for packages:
   The work of downloading and installing all the packages is redone every time
   the runtime starts.
 
-* The Pyodide `python` cli entrypoint mounts all of the host file system as
+* The Pyodide ``python`` cli entrypoint mounts all of the host file system as
   NODEFS directories before it bootstraps Python. This allows the normal virtual
   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
+  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.