Update README.md

README.md

@@ -5,31 +5,54 @@
 [![PyPi Package](https://img.shields.io/pypi/v/icm20948.svg)](https://pypi.python.org/pypi/icm20948)
 [![Python Versions](https://img.shields.io/pypi/pyversions/icm20948.svg)](https://pypi.python.org/pypi/icm20948)
 
+Detect movement in nine different ranges of motion: 3-axis acceleration, 3-axis gyroscopic motion, and 3-axis compass heading.
+
+## Where to buy
+
+* [ICM20948 9DoF Motion Sensor Breakout](https://shop.pimoroni.com/products/icm20948)
 
 # Installing
 
-If you've already set up a Python virtual environment, you can also install the stable library manually from PyPi:
+## Full install (recommended):
 
-```
-pip install icm20948
-```
+We've created an easy installation script that will install all pre-requisites and get you up and running with minimal efforts. To run it, fire up Terminal which you'll find in Menu -> Accessories -> Terminal on your Raspberry Pi desktop, as illustrated below:
 
-Otherwise our install script will set one up for you.
+![Finding the terminal](http://get.pimoroni.com/resources/github-repo-terminal.png)
 
-Stable library from GitHub:
+In the new terminal window type the commands exactly as it appears below (check for typos) and follow the on-screen instructions:
 
 ```
 git clone https://github.com/pimoroni/icm20948-python
 cd icm20948-python
 ./install.sh
 ```
 
-Latest/development library from GitHub:
+**Note** Libraries will be installed in the "pimoroni" virtual environment, you will need to activate it to run examples:
+
+```
+source ~/.virtualenvs/pimoroni/bin/activate
+```
+
+## Development:
+
+If you want to contribute, or like living on the edge of your seat by having the latest code, you can install the development version like so:
 
 ```
 git clone https://github.com/pimoroni/icm20948-python
 cd icm20948-python
 ./install.sh --unstable
 ```
 
-**Note** Libraries will be installed in the "pimoroni" virtual environment, you will need to activate it to run examples:
+## Install stable library from PyPi and configure manually
+
+* Set up a virtual environment: `python3 -m venv --system-site-packages $HOME/.virtualenvs/pimoroni`
+* Switch to the virtual environment: `source ~/.virtualenvs/pimoroni/bin/activate`
+* Install the library: `pip install icm20948`
+
+In some cases you may need to us `sudo` or install pip with: `sudo apt install python3-pip`.
+
+This will not make any configuration changes, so you may also need to enable:
+
+* i2c: `sudo raspi-config nonint do_i2c 0`
+
+You can optionally run `sudo raspi-config` or the graphical Raspberry Pi Configuration UI to enable interfaces.