Add a paragraph break in 02-image-basics.md for better readability

Author: uschille

episodes/02-image-basics.md

@@ -1043,6 +1043,7 @@ users to read, write, and edit metadata is
 [ExifTool](https://exiftool.org/). It can handle a wide range of file
 types and metadata formats but requires some technical knowledge to be
 used effectively.
+
 We normally don't see the metadata when we view an image using Python and imageio,
 but we can view it independently if we wish to
 (see [*Accessing Metadata*](#accessing-metadata), below).