Update qiskit/circuit/library/__init__.py

Co-authored-by: Eric Arellano <14852634+Eric-Arellano@users.noreply.github.com>

Author: Shivansh20128

qiskit/circuit/library/__init__.py

@@ -37,7 +37,7 @@
    circuit.draw('mpl')
 
 The library is organized in several sections. The function 
-:func:`.get_standard_gate_name_mapping` allows to iterate on the standard gates and operations.
+:func:`.get_standard_gate_name_mapping` allows you to see the available standard gates and operations.
 
 .. autofunction:: get_standard_gate_name_mapping