docs: add periods to feature descriptions for consistency (#25562)

- Add terminal periods to all items in 'Feature details' section

- Fix punctuation inconsistency where 'Refactoring' required a period
but others had none

- Maintains all existing content and formatting

Author: Dhanika-Botejue

README.md

@@ -90,13 +90,13 @@ To see all available Python commands, open the Command Palette and type `Python`
 
 Learn more about the rich features of the Python extension:
 
--   [IntelliSense](https://code.visualstudio.com/docs/python/editing#_autocomplete-and-intellisense): Edit your code with auto-completion, code navigation, syntax checking and more
--   [Linting](https://code.visualstudio.com/docs/python/linting): Get additional code analysis with Pylint, Flake8 and more
--   [Code formatting](https://code.visualstudio.com/docs/python/formatting): Format your code with black, autopep or yapf
--   [Debugging](https://code.visualstudio.com/docs/python/debugging): Debug your Python scripts, web apps, remote or multi-threaded processes
+-   [IntelliSense](https://code.visualstudio.com/docs/python/editing#_autocomplete-and-intellisense): Edit your code with auto-completion, code navigation, syntax checking and more.
+-   [Linting](https://code.visualstudio.com/docs/python/linting): Get additional code analysis with Pylint, Flake8 and more.
+-   [Code formatting](https://code.visualstudio.com/docs/python/formatting): Format your code with black, autopep or yapf.
+-   [Debugging](https://code.visualstudio.com/docs/python/debugging): Debug your Python scripts, web apps, remote or multi-threaded processes.
 -   [Testing](https://code.visualstudio.com/docs/python/unit-testing): Run and debug tests through the Test Explorer with unittest or pytest.
--   [Jupyter Notebooks](https://code.visualstudio.com/docs/python/jupyter-support): Create and edit Jupyter Notebooks, add and run code cells, render plots, visualize variables through the variable explorer, visualize dataframes with the data viewer, and more
--   [Environments](https://code.visualstudio.com/docs/python/environments): Automatically activate and switch between virtualenv, venv, pipenv, conda and pyenv environments
+-   [Jupyter Notebooks](https://code.visualstudio.com/docs/python/jupyter-support): Create and edit Jupyter Notebooks, add and run code cells, render plots, visualize variables through the variable explorer, visualize dataframes with the data viewer, and more.
+-   [Environments](https://code.visualstudio.com/docs/python/environments): Automatically activate and switch between virtualenv, venv, pipenv, conda and pyenv environments.
 -   [Refactoring](https://code.visualstudio.com/docs/python/editing#_refactoring): Restructure your Python code with variable extraction and method extraction. Additionally, there is componentized support to enable additional refactoring, such as import sorting, through extensions including [isort](https://marketplace.visualstudio.com/items?itemName=ms-python.isort) and [Ruff](https://marketplace.visualstudio.com/items?itemName=charliermarsh.ruff).