Bot Updating Documentation

docs/images/docker-baseimage-selkies.md

@@ -44,6 +44,7 @@ All application settings are passed via environment variables:
 | DISABLE_ZINK | Do not set the Zink environment variables if a video card is detected (userspace applications will use CPU rendering) |
 | WATERMARK_PNG | Full path inside the container to a watermark png IE `/usr/share/selkies/www/icon.png` |
 | WATERMARK_LOCATION | Where to paint the image over the stream integer options below |
+| MAX_RES | Pass a larger maximum resolution for the container default is 8k `7680x4320` |
 
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