Merge branch 'patch-1' into 'master'

Fix date in CHANGELOG.rst

See merge request !8

CHANGELOG.rst

 This document contains the FSL-MRS release history in reverse chronological order.
 
-1.0.2 (Friday 19th June 2020)
+1.0.2 (Saturday 27th June 2020)
 --------------------------------
 - Add missing requirement (pillow)
 
-
 1.0.1 (Friday 19th June 2020)
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 - Output folder in fsl_mrs_proc will now be created if it does not exist.