Recover all the lost colons

Author: webknjaz

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

@@ -57,7 +57,7 @@ Defining the Python version required
 
 Ensure that before you generate source distributions or binary distributions, you update Setuptools and install twine.
 
-Steps
+Steps:
 
 .. tab:: Unix/macOS
 

source/guides/hosting-your-own-index.rst

@@ -12,7 +12,7 @@ generate an autoindex.
 
 In either case, since you'll be hosting a repository that is likely not in
 your user's default repositories, you should instruct them in your project's
-description to configure their installer appropriately. For example with pip
+description to configure their installer appropriately. For example with pip:
 
 .. tab:: Unix/macOS
 

source/guides/making-a-pypi-friendly-readme.rst

@@ -105,7 +105,7 @@ messages like "``Error: Unknown interpreted text role "py:func".``".
 You can check your README for markup errors before uploading as follows:
 
 1. Install the latest version of `twine <https://github.com/pypa/twine>`_;
-   version 1.12.0 or higher is required
+   version 1.12.0 or higher is required:
 
    .. tab:: Unix/macOS