[gnome-maps] openTripPlanner: Add link to API docs

[Marcus Lundblad <mlundblad src gnome org>]

commit 1686959ab146976d4f188dca25d8e6c3b278200a
Author: Marcus Lundblad <ml update uu se>
Date:   Thu Jun 29 22:20:10 2017 +0200

    openTripPlanner: Add link to API docs

 src/openTripPlanner.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/openTripPlanner.js b/src/openTripPlanner.js
index 6323bf4..7985b80 100644
--- a/src/openTripPlanner.js
+++ b/src/openTripPlanner.js
@@ -75,6 +75,8 @@ const Utils = imports.utils;
  * will result in walking legs which use "as the crow flies" routes for walking.
  * It will also clean up the results by pruning out pointless transit legs, such
  * as taking transit very short distances when almost reaching the target.
+ *
+ * API docs for OpenTripPlanner can be found at: http://dev.opentripplanner.org/apidoc/1.0.0/
  */
 
 /* timeout after which the routers data is considered stale and we will force