Revert version changes

Author: LiamConnors

Diff for: doc/python/imshow.md

@@ -5,10 +5,10 @@ jupyter:
     text_representation:
       extension: .md
       format_name: markdown
-      format_version: '1.3'
-      jupytext_version: 1.13.4
+      format_version: '1.2'
+      jupytext_version: 1.4.2
   kernelspec:
-    display_name: Python 3 (ipykernel)
+    display_name: Python 3
     language: python
     name: python3
   language_info:
@@ -20,7 +20,7 @@ jupyter:
     name: python
     nbconvert_exporter: python
     pygments_lexer: ipython3
-    version: 3.7.11
+    version: 3.7.7
   plotly:
     description: How to display image data in Python with Plotly.
     display_as: scientific