build: Bump Python version in project setup

Follow-on from #135.

I've also tweaked the README content and formatting.

README.md

@@ -2,10 +2,10 @@
 
 ## Overview
 
-This repo contains a CLI application used for extracting text from pdf and html documents before translating these to a target language (default is English) if they are in a different language to the target language. 
+This repo contains a CLI application used for extracting text from pdf and html documents before translating these to a target language (default is English) if they are in a different language to the target language.
 
-**HTML Text Extraction:** 
-- HTML webpages are processed by making a request to the webpage and extracting text from the html content using a combination of the `news-please` and `readability` python packages. 
+**HTML Text Extraction:**
+- HTML webpages are processed by making a request to the webpage and extracting text from the html content using a combination of the `news-please` and `readability` python packages.
 
 **PDF Text Extraction:**
 - PDF documents are processed by downloading the pdf from the cdn (Content Delivery Network accessible via an endpoint) and using the `Azure` form recognizer API to extract text from the pdf.
@@ -18,14 +18,14 @@ This repo contains a CLI application used for extracting text from pdf and html
 To operate and run the CLI the repo provides useful commands in the `Makefile`. This reads environment variables from a `.env` file. Create this locally by running the following command and then enter the relevant values.
 
 ``` bash
-cp .env.example .env
+make setup
 ```
 
-Once this is done we can then run the commands in the `Makefile`. These split into two main groups, running `locally` or in a `docker container`. 
+Once this is done we can then run the commands in the "Makefile". These split into two main groups, running directly on your machine, or in a Docker container.
 
 To run locally run the following commands to install dependencies using Poetry and set up playwright and pre-commit. Then run the CLI locally.
 
-Note that you will need a python version in your virtual environment of `3.9` or greater. It is also recommended to run within a virtual environment.
+Note that you will need a Python version in your virtual environment of that matches the project version. It is also recommended to run within a virtual environment.
 
 ``` bash
 make install