Create auto_zoom.md

docs/auto_zoom.md

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+### Auto Zooming the room (segment) when the vacuum is cleaning it.
+
+***Category:*** Camera Configuration - Image Options - Auto Zoom.
+
+![Screenshot 2024-03-09 at 21 18 47](https://github.com/sca075/valetudo_vacuum_camera/assets/82227818/02787561-6c1b-4db7-9960-fd8f3e911161)
+
+![Screenshot 2024-03-09 at 21 20 48](https://github.com/sca075/valetudo_vacuum_camera/assets/82227818/7d98c2e9-700f-49cc-b6c5-d43b11f7baef)
+
+***Default:***  Disable
+
+***Description:*** If the vacuum supports the segments and those are properly configured also in the card, when the
+vacuum enters the room to clean the Camera will zoom the image on that room.
+
+https://github.com/sca075/valetudo_vacuum_camera/assets/82227818/b27cafb4-549a-4957-9548-2aa4cc07c8cd
+
+***Note:*** The zoom works only when the vacuum is in “cleaning” state. In all other states the image returns
+automatically to the floor plan. If the auto zoom is disabled the floor map is displayed normally, cleaned or in clean
+mode segments are highlighted on the map by a faded selected color.