Installation instructions

[jsrinivasa]

Description

Pyenv instructions - the directory is not specified , as well as the instructions required to activate the pyenv shell .
Also there is a problem with the requirements.txt and conflict in requirements.

ERROR: Cannot install -r requirements.txt (line 7) and Werkzeug==1.0.1 because these package versions have conflicting dependencies.

The conflict is caused by:
The user requested Werkzeug==1.0.1
flask 2.1.1 depends on Werkzeug>=2.0

To fix this you could try to:

1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

Steps to Reproduce

1. pyenv local venv
2. pwd
3. cd code/Blaze/
4. pip install -r requirements.txt

Checklist

• I have read the contributing guidelines
• I have verified this does not duplicate an existing issue