Update 'README.md'

README.md

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 # getDiscography
 
 Flask based utility that will allow a user to download an entire Discography for the provided artist.
+
+## How to use:
+
+Open the root directory of this project in a terminal.
+
+Create a virtual environment with python.
+``` 
+python -m venv .
+```
+
+*For more about virtual environments, look here: https://docs.python.org/3/library/venv.html*
+
+While in the virtual env (venv) install the requirements.txt file with:
+``` 
+pip install -r ./requirements.txt
+```
+
+After all dependencies have been installed successfully, start the service with:
+```
+python app.py
+```
+
+The service will then be accessible at http://localhost for as long as the terminal stays open.  To shutdown the service simply close the terminal or ctl + c