Change readme link

Author: gmenegatti

README.md

@@ -285,7 +285,7 @@ print(client.count_entity_total())
 ```
 
 ### `count_entity_total(tables)`
-Count the total number of inserted entities in the given tables. This method corresponds to a [POST request at /query/count/entity/total](https://docs.slicingdice.com/docs/total).
+Count the total number of inserted entities in the given tables. This method corresponds to a [POST request at /query/count/entity/total](https://docs.slicingdice.com/docs/total#section-counting-specific-tables).
 
 #### Request example