More ePub options.

docs/source/conf.py

@@ -324,7 +324,7 @@ epub_basename = 'gprMax User Guide'
 #epub_language = ''
 
 # The scheme of the identifier. Typical schemes are ISBN or URL.
-#epub_scheme = ''
+epub_scheme = 'URL'
 
 # The unique identifier of the text. This can be a ISBN number
 # or the project homepage.
@@ -360,7 +360,7 @@ epub_exclude_files = ['search.html']
 #epub_tocscope = 'default'
 
 # Fix unsupported image types using the Pillow.
-epub_fix_images = True
+#epub_fix_images = False
 
 # Scale large images.
 #epub_max_image_width = 0