Adding tag restrictions

Author: aricrowe57

articles/active-directory/develop/supported-accounts-validation.md

@@ -42,6 +42,7 @@ See the following table for the validation differences of various properties for
 | appRoles                                                     | Supported <br> No limit\*                                                                                                                                                                                                                           | Supported <br> No limit\*                                                                                                                                                                                                                      | Not supported                                                                                                                                                                                                      |
 | Front-channel logout URL                                     | https://localhost is allowed <br><br> `http` scheme isn't allowed <br><br> Maximum length of 255 characters                                                                                                                                         | https://localhost is allowed <br><br> `http` scheme isn't allowed <br><br> Maximum length of 255 characters                                                                                                                                    | https://localhost is allowed, http://localhost fails <br><br> `http` scheme isn't allowed <br><br> Maximum length of 255 characters <br><br> Wildcards aren't supported                                            |
 | Display name                       | Maximum length of 120 characters                                                                                                                                                                                                                                         | Maximum length of 120 characters                                                                                                                                                                                                                                    | Maximum length of 90 characters                                                                                                                                                               |
+| Tags                       | Individual tag size must be between 1 and 256 characters (inclusive).  No whitespaces or duplicate tags allowed.                                                                                                                                                                                                                                         | Individual tag size must be between 1 and 256 characters (inclusive).  No whitespaces or duplicate tags allowed.                                                                                                                                                                                                                                    | Individual tag size must be between 1 and 256 characters (inclusive).  No whitespaces or duplicate tags allowed.                                                                                                                                                                |
 
 \* There's a global limit of about 1000 items across all the collection properties on the app object.