Add config docs to cpp_api/config.h

Author: shaunrd0

tiledb/api/c_api/config/config_api_external.h

@@ -750,7 +750,7 @@ TILEDB_EXPORT void tiledb_config_free(tiledb_config_t** config) TILEDB_NOEXCEPT;
  *    **Default**: true
  * - `rest.use_refactored_array_open_and_query_submit` <br>
  *    If true, the new REST routes and APIs for opening an array and submitting
- * a query will be used <br>
+ *    a query will be used <br>
  *    **Default**: true
  * - `rest.curl.buffer_size` <br>
  *    Set curl buffer size for REST requests <br>

tiledb/sm/cpp_api/config.h

@@ -915,6 +915,10 @@ class Config {
    *    If true, array non empty domain will be loaded and sent to server
    *    together with the open array <br>
    *    **Default**: true
+   * - `rest.load_enumerations_on_array_open` <br>
+   *    If true, enumerations will be loaded and sent to server together with
+   *    the open array.
+   *    **Default**: false
    * - `rest.use_refactored_array_open` <br>
    *    If true, the new REST routes and APIs for opening an array will be used
    *    <br>