Update readme

Author: Ramsay, Grant (NZ)

README.md

@@ -31,13 +31,18 @@ Notes on Multiple sensor support:
 Notes on using TCA9548A I2C Multiplexer:
 - If limited on GPIO's that would be needed to set a new addresses for each sensor, using a TCA9548A I2C Multiplexer is a good option since it allows using up to 8 sensors without using GPIO's.
 - The TCA9548A is also a good option if using multiple boards on the same I2C bus and the total of all the combined I2C pullups would cause the bus not to function. 
-- Theoretically you can connect mutltiple TCA9548A Multiplexers, each with up to 8 sensors as long each TCA9548A has a different address. This has not been tested but should work in theory.
+- Theoretically you can connect multiple TCA9548A Multiplexers, each with up to 8 sensors as long each TCA9548A has a different address. This has not been tested but should work in theory.
 
 (Please note that while the author is an embedded software engineer, this is a first attempt at extending python and the author is by no means a python expert so any improvement suggestions are appreciated).
 
 
 ### Installation
-
+```bash
+# Python2
+pip2 install git+https://github.com/johnbryanmoore/VL53L0X_rasp_python.git
+# Python3
+pip3 install git+https://github.com/johnbryanmoore/VL53L0X_rasp_python.git
+```
 
 ### Compilation