Signatures column for pragmas table

Author: ginsbach

docs/codeql/ql-language-reference/ql-language-specification.rst

@@ -805,11 +805,11 @@ Binding sets are checked by the QL compiler in the following way:
 
 A predicate may have several different binding sets, which can be stated by using multiple ``bindingset`` annotations on the same predicate.
 
-+----------------+---------+------------+-------------------+-----------------------+---------+--------+---------+---------+
-| Pragma         | Classes | Characters | Member predicates | Non-member predicates | Imports | Fields | Modules | Aliases |
-+================+=========+============+===================+=======================+=========+========+=========+=========+
-| ``bindingset`` |         | yes        | yes               | yes                   |         |        |         |         |
-+----------------+---------+------------+-------------------+-----------------------+---------+--------+---------+---------+
++----------------+---------+------------+-------------------+-----------------------+---------+--------+---------+---------+------------+
+| Pragma         | Classes | Characters | Member predicates | Non-member predicates | Imports | Fields | Modules | Aliases | Signatures |
++================+=========+============+===================+=======================+=========+========+=========+=========+============+
+| ``bindingset`` |         | yes        | yes               | yes                   |         |        |         |         | yes        |
++----------------+---------+------------+-------------------+-----------------------+---------+--------+---------+---------+------------+
 
 QLDoc
 -----