02-data-handling: Updates

[manojneuro]

These are some suggestions to improve the 02-data-handling notebook:

• There is a reference to the glossary in the introduction, but the glossary was quite far down in the document. Can you add a hyperlink?

• In the glossary, "(TR) is the time interval at which pulses occur and signal is collected". It's not obvious what the pulses are. From the perspective of fMRI, the TR is the time in seconds between acquisition of volumes of data.

• Consider using the term "Functional Localizer" to "Localizer".

• Using line graphs in section 2.2 might suggest that the stimuli are continuous. In particular, the rest periods are not marked.

• Remove third 't' from 'patttern' in section 4.1