updating installation instructions

Signed-off-by: Anusha Hegde <[email protected]>

Author: Anusha Hegde

README.md

@@ -43,7 +43,7 @@ A Python virtual environment is also highly recommended.
 
 ### Installing Required Python Packages
 
-Be sure to upgrade to the latest pip and setuptools
+Be sure to upgrade to the latest pip and setuptools.
 
 ```cmd
 pip install --upgrade pip setuptools