Typo in Readme

[Hockey86]

There are typos on Readme, as bolded below:

At least one EEG is required, named either:
f3-m2, f2-m1, c3-m2, c4-m1, o1-m2, o2-m1, or eeg.
CAISR performs best when six EEG channels are provided:
f3-m2, f2-m1, c3-m2, c4-m1, o1-m2, o2-m1.