Update API.md

Author: carlosen14

API.md

@@ -127,7 +127,7 @@ Runs the VRP solver asynchronously to search for a solution.
 - `computeTimeLimit` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** Time limit in milliseconds for the solver. In general the longer you run the solver the better the solution (if there is any) will be. The solver will never run longer than this time limit but can finish earlier.
 - `numVehicles` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The number of vehicles for servicing nodes.
 - `depotNode` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The depot node index in the range `[0, numNodes - 1]` where all vehicles start and end at.
-- `timeHorizon` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The last time point the solver uses for time constraints. The solver starts from time point `0` (you can think of this as the start of the work day) and and ends at `timeHorizon` (you can think of this as the end of the work day).
+- `timeHorizon` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The last time point the solver uses for time constraints. The solver starts from time point `0` (you can think of this as the start of the work day) and ends at `timeHorizon` (you can think of this as the end of the work day).
 - `vehicleCapacity` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** The maximum capacity for goods each vehicle can carry. Demand at nodes decrease the capacity.
 - `routeLocks` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)** Route locks array the solver uses for locking (sub-) routes into place, per vehicle. Two-dimensional with `routeLocks[vehicle]` being an **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)** with node indices `vehicle` has to visit in order. Can be empty. Must not contain the depots.
 - `pickups` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)** with node indices for picking up good. The corresponding delivery node index is in the `deliveries` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)** at the same position (parallel arrays). For a pair of pickup and delivery indices: pickup location comes before the corresponding delivery location and is served by the same vehicle.