Improve heading and remove space in commands (#1241)

* Removed space

* Improved heading

* Added anchor for changed heading

---------

Co-authored-by: Brian Rutledge <brian@bhrutledge.com>

Author: chrysle

source/guides/dropping-older-python-versions.rst

@@ -63,13 +63,13 @@ Steps:
 
     .. code-block:: bash
 
-        python3 -m pip install  --upgrade setuptools twine
+        python3 -m pip install --upgrade setuptools twine
 
 .. tab:: Windows
 
     .. code-block:: bat
 
-        py -m pip install  --upgrade setuptools twine
+        py -m pip install --upgrade setuptools twine
 
 `setuptools` version should be above 24.0.0.
 

source/guides/installing-using-linux-tools.rst

@@ -114,8 +114,11 @@ openSUSE
  
     sudo zypper install python3-pip python3-setuptools python3-wheel
 
-Debian/Ubuntu
-~~~~~~~~~~~~~
+
+.. _debian-ubuntu:
+
+Debian/Ubuntu and derivatives
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Firstly, update and refresh repository lists by running this command:
 

source/guides/installing-using-pip-and-virtual-environments.rst

@@ -31,7 +31,6 @@ installed.
     .. code-block:: bash
 
         python3 -m pip install --user --upgrade pip
-
         python3 -m pip --version
 
     Afterwards, you should have the latest version of pip installed in your
@@ -51,7 +50,6 @@ installed.
     .. code-block:: bat
 
         py -m pip install --upgrade pip
-
         py -m pip --version
 
     Afterwards, you should have the latest version of pip: