README.md: Fix wording

Co-authored-by: Alex J Best <[email protected]>

Author: Matthias Köppe

README.md

@@ -405,7 +405,7 @@ For installation of `sage` in python using `pip` you need to install `sagemath-s
             $ python3 -m pip install $(sage-config SAGE_SPKG_WHEELS)/*.whl 
             $ python3 -m pip install sagemath-standard
 
-You need to install the `sage_conf`, a wheelhouse of various python packages. You can list the wheels using `ls $(sage-config SAGE_SPKG_WHEELS)`. After manual installation of these wheels, you can install the sage library, `sagemath-standard`. 
+You need to install `sage_conf`, a wheelhouse of various python packages. You can list the wheels using `ls $(sage-config SAGE_SPKG_WHEELS)`. After manual installation of these wheels, you can install the sage library, `sagemath-standard`. 
 
 **NOTE:** You can find `sage` and `sagemath` pip packages but with these packages, you will encounter `ModuleNotFoundError`.