Update virtualenvs.rst - #1183

Update virtualenvs.rst#1183

Sidra-Maryam wants to merge 2 commits into

realpython:masterrealpython/python-guide:masterfrom

Sidra-Maryam:fix/virtualenvs-heading-formatSidra-Maryam/python-guide:fix/virtualenvs-heading-formatCopy head branch name to clipboard