Fix typo installation docs (#7093)
Fix typo installation docs (#7093)

* Fix typo installation docs

I believe `conda create -n hail python==3.6` should only use `=`.

* Update getting_started.rst

hail-is/hail,cseed/hail,danking/hail,cseed/hail,danking/hail,hail-is/hail,danking/hail,danking/hail,danking/hail,cseed/hail,hail-is/hail,hail-is/hail,cseed/hail,hail-is/hail,cseed/hail,hail-is/hail,cseed/hail,hail-is/hail,danking/hail,danking/hail,cseed/hail,hail-is/hail,danking/hail,cseed/hail