Update http.md (#5914)

Looks like a mistake in the description of Table api

Author: AndreyGurevich

docs/http.md

@@ -299,9 +299,9 @@ curl 'http://router.project-osrm.org/table/v1/driving/13.388860,52.517037;13.397
 
 - `code` if the request was successful `Ok` otherwise see the service dependent and general status codes.
 - `durations` array of arrays that stores the matrix in row-major order. `durations[i][j]` gives the travel time from
-  the i-th waypoint to the j-th waypoint. Values are given in seconds. Can be `null` if no route between `i` and `j` can be found.
+  the i-th source to the j-th destination. Values are given in seconds. Can be `null` if no route between `i` and `j` can be found.
 - `distances` array of arrays that stores the matrix in row-major order. `distances[i][j]` gives the travel distance from
-  the i-th waypoint to the j-th waypoint. Values are given in meters. Can be `null` if no route between `i` and `j` can be found.
+  the i-th source to the j-th destination. Values are given in meters. Can be `null` if no route between `i` and `j` can be found.
 - `sources` array of `Waypoint` objects describing all sources in order
 - `destinations` array of `Waypoint` objects describing all destinations in order
 - `fallback_speed_cells` (optional) array of arrays containing `i,j` pairs indicating which cells contain estimated values based on `fallback_speed`.  Will be absent if `fallback_speed` is not used.