Merge pull request #1154 from tableau/kr-issues-fix

Kr issues fix

Author: kramantab

docs/api-ref.md

@@ -647,7 +647,7 @@ Error   |  Description
 
 **Returns**
 
-A refreshed `DatasourceItem`.
+A refreshed `JobItem`.
 
 
 **Example**
@@ -2025,7 +2025,7 @@ Name  |  Description
 projects.update_permission(item, rules)
 ```
 
-Add or update project permissions.
+Add project permissions for a user or group.  
 
 REST API: [Add Project Permissions](https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref_permissions.htm#add_project_permissions){:target="_blank"}
 

docs/filter-sort.md

@@ -35,6 +35,8 @@ API help](https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_conc
 
 To filter on a field, you need to specify the field name, an operator criteria and a value criteria.
 
+**Note**: Ampersands and commas in filters are not supported by the REST API as they are used as delimiters.
+
 ### Operator criteria
 
 The operator that you want to use for that field. For example, you can use the Equals operator to get everything from the endpoint that matches exactly.