added code tags

README.rst

@@ -70,9 +70,9 @@ Development
 -----------
 
 For development, it is recommended to do a an editable installation of Foolbox
-and Foolbox native using `pip install -e .` in the corresponding folders (after
+and Foolbox native using :code:`pip install -e .` in the corresponding folders (after
 cloning the two repositories). Unfortunately, `pip` has a
 `bug <https://github.com/pypa/pip/issues/7265>`_ with editable installs and
 namespace packages like Foolbox Native. A simple workaround is to add a symlink
-to the `foolbox/ext/native` folder of Foolbox Native in the `foolbox/ext/` folder
+to the :code:`foolbox/ext/native` folder of Foolbox Native in the :code:`foolbox/ext/` folder
 of Foolbox itself.