updated Sonar 90 degree additional picture

Author: thilo-huck

docs/img/Sonar-3D-15-side-right.png

@@ -14,6 +14,7 @@
 ## Dimensions
 
 ![Sonar 3D 15 Dimensions](../img/Sonar-3D-15-physical-dims-public-alpha-4x.png)
+![Sonar 3D 15 Right Side View](../img/Sonar-3D-15-side-right.png)
 The cable can be bent as shown in the image up to 90 degrees without causing any damage.
 ![Sonar 3D 15 Back Dim](../img/Sonar-3D-15-back.png)