add generate_hints parameter info to document (#5754)

Author: wuminorb

docs/nodejs/api.md

@@ -50,6 +50,7 @@ Returns the fastest route between two or more coordinates while visiting the way
                                           Can be `null` or an array of `[{value},{range}]` with `integer 0 .. 360,integer 0 .. 180`.
     -   `options.radiuses` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Limits the coordinate snapping to streets in the given radius in meters. Can be `null` (unlimited, default) or `double >= 0`.
     -   `options.hints` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Hints for the coordinate snapping. Array of base64 encoded strings.
+    -   `options.generate_hints` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)?** Whether or not adds a Hint to the response which can be used in subsequent requests. (optional, default `true`)
     -   `options.alternatives` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** Search for alternative routes. (optional, default `false`)
     -   `options.alternatives` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** Search for up to this many alternative routes.
         _Please note that even if alternative routes are requested, a result cannot be guaranteed._ (optional, default `0`)
@@ -91,6 +92,7 @@ Note: `coordinates` in the general options only supports a single `{longitude},{
                                           Can be `null` or an array of `[{value},{range}]` with `integer 0 .. 360,integer 0 .. 180`.
     -   `options.radiuses` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Limits the coordinate snapping to streets in the given radius in meters. Can be `null` (unlimited, default) or `double >= 0`.
     -   `options.hints` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Hints for the coordinate snapping. Array of base64 encoded strings.
+    -   `options.generate_hints` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)?** Whether or not adds a Hint to the response which can be used in subsequent requests. (optional, default `true`)
     -   `options.number` **[Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)** Number of nearest segments that should be returned.
         Must be an integer greater than or equal to `1`. (optional, default `1`)
     -   `options.approaches` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Keep waypoints on curb side. Can be `null` (unrestricted, default) or `curb`.
@@ -128,6 +130,7 @@ tables. Optionally returns distance table.
                                           Can be `null` or an array of `[{value},{range}]` with `integer 0 .. 360,integer 0 .. 180`.
     -   `options.radiuses` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Limits the coordinate snapping to streets in the given radius in meters. Can be `null` (unlimited, default) or `double >= 0`.
     -   `options.hints` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Hints for the coordinate snapping. Array of base64 encoded strings.
+    -   `options.generate_hints` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)?** Whether or not adds a Hint to the response which can be used in subsequent requests. (optional, default `true`)
     -   `options.sources` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** An array of `index` elements (`0 <= integer < #coordinates`) to
         use
         location with given index as source. Default is to use all.
@@ -208,6 +211,7 @@ if they can not be matched successfully.
     -   `options.bearings` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Limits the search to segments with given bearing in degrees towards true north in clockwise direction.
                                           Can be `null` or an array of `[{value},{range}]` with `integer 0 .. 360,integer 0 .. 180`.
     -   `options.hints` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Hints for the coordinate snapping. Array of base64 encoded strings.
+    -   `options.generate_hints` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)?** Whether or not adds a Hint to the response which can be used in subsequent requests. (optional, default `true`)
     -   `options.steps` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** Return route steps for each route. (optional, default `false`)
     -   `options.annotations` **([Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) \| [Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean))** An array with strings of `duration`, `nodes`, `distance`, `weight`, `datasources`, `speed` or boolean for enabling/disabling all. (optional, default `false`)
     -   `options.geometries` **[String](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)** Returned route geometry format (influences overview and per step). Can also be `geojson`. (optional, default `polyline`)
@@ -274,6 +278,7 @@ Right now, the following combinations are possible:
                                           Can be `null` or an array of `[{value},{range}]` with `integer 0 .. 360,integer 0 .. 180`.
     -   `options.radiuses` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Limits the coordinate snapping to streets in the given radius in meters. Can be `double >= 0` or `null` (unlimited, default).
     -   `options.hints` **[Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)?** Hints for the coordinate snapping. Array of base64 encoded strings.
+    -   `options.generate_hints` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)?** Whether or not adds a Hint to the response which can be used in subsequent requests. (optional, default `true`)
     -   `options.steps` **[Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** Return route steps for each route. (optional, default `false`)
     -   `options.annotations` **([Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) \| [Boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean))** An array with strings of `duration`, `nodes`, `distance`, `weight`, `datasources`, `speed` or boolean for enabling/disabling all. (optional, default `false`)
     -   `options.geometries` **[String](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)** Returned route geometry format (influences overview and per step). Can also be `geojson`. (optional, default `polyline`)