Update location-retrieval.yaml

Fixing linting + adding precision as suggested by @alpaycetin74: 
`Note: if both `maxAge` and `maxSurface` requirements fail, the system can either send back one or the other error code.  `

code/API_definitions/location-retrieval.yaml

@@ -46,8 +46,9 @@ info:
 
     * **Max Surface**: Maximum surface in square meters which is accepted by the client for the location retrieval.
 
-      * absence of `maxSurface` means that "any surface size" is acceptable for the client. 
+      * absence of `maxSurface` means that "any surface size" is acceptable for the client.
       * If the system is not able to provide an area with a surface acceptable with the client request, an error 422 with code LOCATION_RETRIEVAL.UNABLE_TO_FULFILL_MAX_SURFACE is sent back.
+      * Note: if both `maxAge` and `maxSurface` requirements fail, the system can either send back one or the other error code.  
 
 
     # API Functionality