Getting rid of empty files and directories and adding learner profile

Author: lauracmurphy

data/Ersi_organoid_WT2.nd2 episodes/data/Ersi_organoid_WT2.nd2data/Ersi_organoid_WT2.nd2 renamed to episodes/data/Ersi_organoid_WT2.nd2

@@ -1,6 +1,14 @@
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 title: Reference
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+## Glossary
+
+binary image
+:   an image of pixels with only two possible values, 0 and 1. Typically, the two colours used for a binary image are black and white.
+
+bit
+:   in computing a unit with a state of either 0 or 1.
+
 
 ## Python syntax primer