Merge pull request colomemaria#127 from colomemaria/add_fns

Add fns tutorial

Update README.rst

Merge pull request colomemaria#86 from colomemaria/update_load_features

Update load features functions

Update _quality_control.py

Update _bld_atac_mtx2.py

Update ct.py

Merge pull request colomemaria#64 from mvinyard/mvinyard-patch-read_A…

…TAC_10x

Update _load_matrix.py

Update utils.py

Update requirements.txt

Update requirements.txt