Add BBox & Bounds docs
@@ -76,6 +76,16 @@ Note that the API calls are done on the best match from the provider, but you ca
>>> g.address
'Best Western Plus Mountainview Inn and Suites'
+BBox & Bounds
+---------------
+
+Some Geocoder results will contain a BBox/Bounds of the geographical extent of the result.
+There are two different widely adopted formats:
+
+- `Bounds`: An Object defined as `{northeast: [north, east], southwest: [south west]}` which was first implemented by Google Maps API and adopted by many other providers such as Leaflet.
+- `BBox`: An Array of 4 numbers `[west, south, east, north]` which follows the GeoJSON BBox specification.
+
+The major difference between both is the coordinates are flipped (LatLng => LngLat).
"Breaking" change
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