Remove trailing whitespace

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

docs/source/getting-started/install.rst

@@ -122,7 +122,7 @@ Installation as an Application: Downloading Releases
     for Python that has to be downloaded and installed separately.
     On more recent versions of Ubuntu, you will ll have to install Python 3.8 manually.
     One possibility is to use the Deadsnakes PPA (Personal Package Archive) which is
-    a project that provides older Python version builds for Debian and Ubuntu and is 
+    a project that provides older Python version builds for Debian and Ubuntu and is
     available at https://github.com/deadsnakes/ and https://launchpad.net/~deadsnakes/+archive/ubuntu/ppa
     ::