[ci skip] Add missing option description for returning and silent (#6146)

* Change mapToModel as Boolean instead of Object

Change `mapToModel` as Boolean instead of Object

* add returnning options

* update md for silent and returning

docs/api/instance.md

@@ -210,6 +210,7 @@ This error will have a property for each of the fields for which validation fail
 | [options.logging=false] | Function | A function that gets executed while running the query to log the sql. |
 | [options.transaction] | Transaction |  |
 | [options.searchPath=DEFAULT] | String | An optional parameter to specify the schema search_path (Postgres only) |
+| [options.returning] | Boolean | Append RETURNING * to get back auto generated values (Postgres only) |
 
 
 ***
@@ -299,7 +300,7 @@ Destroy the row corresponding to this instance. Depending on your setting for pa
 | [options.logging=false] | Function | A function that gets executed while running the query to log the sql. |
 | [options.transaction] | Transaction |  |
 | [options.searchPath=DEFAULT] | String | An optional parameter to specify the schema search_path (Postgres only) |
-
+| [options.silent=false] | Boolean | If true, the updatedAt timestamp will not be updated. |
 
 ***
 
@@ -435,4 +436,4 @@ Convert the instance to a JSON representation. Proxies to calling `get` with no
 
 ***
 
-_This document is automatically generated based on source code comments. Please do not edit it directly, as your changes will be ignored. Please write on <a href="irc://irc.freenode.net/#sequelizejs">IRC</a>, open an issue or a create a pull request if you feel something can be improved. For help on how to write source code documentation see [JSDoc](http://usejsdoc.org) and [dox](https://github.com/tj/dox)_
\ No newline at end of file
+_This document is automatically generated based on source code comments. Please do not edit it directly, as your changes will be ignored. Please write on <a href="irc://irc.freenode.net/#sequelizejs">IRC</a>, open an issue or a create a pull request if you feel something can be improved. For help on how to write source code documentation see [JSDoc](http://usejsdoc.org) and [dox](https://github.com/tj/dox)_

docs/api/model.md

@@ -541,7 +541,8 @@ Builds a new model instance and calls save on it.
 | [options.logging=false] | Function | A function that gets executed while running the query to log the sql. |
 | [options.searchPath=DEFAULT] | String | An optional parameter to specify the schema search_path (Postgres only) |
 | [options.benchmark=false] | Boolean | Print query execution time in milliseconds when logging SQL. |
-
+| [options.returning] | Boolean | Append RETURNING * to get back auto generated values (Postgres only) |
+| [options.silent=false] | Boolean | If true, the updatedAt timestamp will not be updated. |
 
 ***
 

lib/model.js

@@ -1748,15 +1748,20 @@ class Model {
    * @param {Object}        [options]
    * @param {Boolean}       [options.raw=false] If set to true, values will ignore field and virtual setters.
    * @param {Boolean}       [options.isNewRecord=true]
+   * @param {Array}         [options.include] an array of include options - Used to build prefetched/included model instances. See `set`
    * @param {Array}         [options.fields] If set, only columns matching those in fields will be saved
-   * @param {Array}         [options.include] an array of include options - Used to build prefetched/included model instances
-   * @param {String}        [options.onDuplicate]
-   * @param {Transaction}   [options.transaction] Transaction to run query under
+   * @param {string[]}      [options.fields] An optional array of strings, representing database columns. If fields is provided, only those columns will be validated and saved.
+   * @param {Boolean}       [options.silent=false] If true, the updatedAt timestamp will not be updated.
+   * @param {Boolean}       [options.validate=true] If false, validations won't be run.
+   * @param {Boolean}       [options.hooks=true] Run before and after create / update + validate hooks
    * @param {Function}      [options.logging=false] A function that gets executed while running the query to log the sql.
    * @param {Boolean}       [options.benchmark=false] Pass query execution time in milliseconds as second argument to logging function (options.logging).
+   * @param {Transaction}   [options.transaction] Transaction to run query under
    * @param {String}        [options.searchPath=DEFAULT] An optional parameter to specify the schema search_path (Postgres only)
+   * @param  {Boolean}      [options.returning=true] Return the affected rows (only for postgres)
    *
    * @return {Promise<Instance>}
+   *
    */
   static create(values, options) {
     options = Utils.cloneDeep(options || {});
@@ -3078,7 +3083,7 @@ class Model {
    * @param {Function}    [options.logging=false] A function that gets executed while running the query to log the sql.
    * @param {Transaction} [options.transaction]
    * @param  {String}     [options.searchPath=DEFAULT] An optional parameter to specify the schema search_path (Postgres only)
-   *
+   * @param  {Boolean}    [options.returning] Append RETURNING * to get back auto generated values (Postgres only)
    * @return {Promise<this|Errors.ValidationError>}
    */
   save(options) {

lib/sequelize.js

@@ -520,7 +520,7 @@ class Sequelize {
    * @param {Integer}         [options.retry.max] How many times a failing query is automatically retried.
    * @param {String}          [options.searchPath=DEFAULT] An optional parameter to specify the schema search_path (Postgres only)
    * @param {Boolean}         [options.supportsSearchPath] If false do not prepend the query with the search_path (Postgres only)
-   * @param {Object}          [options.mapToModel=false] Map returned fields to model's fields if `options.model` or `options.instance` is present. Mapping will occur before building the model instance.
+   * @param {Boolean}          [options.mapToModel=false] Map returned fields to model's fields if `options.model` or `options.instance` is present. Mapping will occur before building the model instance.
    * @param {Object}          [options.fieldMap] Map returned fields to arbitrary names for `SELECT` query type.
    *
    * @return {Promise}