docs still state to install miniconda2

[nick-youngblut]

The docs state to install miniconda2 instead of miniconda3. Python2 is depreciated and should be discouraged. If py2 is still needed for panx, then the user can create a py2 conda env in miniconda3.

Does panX lack py3 compatibility? If yes, are you planning on updating the code?

[fbaumdicker]

There is a py3 branch. See also this issue: #27
You could use it and see whether it works on your data.

[nick-youngblut]

Thanks for the info! Are you planning on updating the docs to switch over to the py3 version? Also, it appears that the panX bioconda recipe still requires py2. If you already have a working branch, then the transition will hopefully be smooth.