Fixing a few minor issues

Author: Takishima

projectq/libs/qasm/__init__.py

@@ -22,8 +22,6 @@
     try:
         from ._parse_qasm_pyparsing import read_qasm_file, read_qasm_str
     except ImportError as e:
-        import warnings
-
         err = (
             'Unable to import either qiskit or pyparsing\nPlease install either of them if you want to use '
             'projectq.libs.qasm (e.g. using the command python -m pip install projectq[qiskit])'

projectq/libs/qasm/_utils.py

@@ -25,7 +25,7 @@ def __init__(self, name, params):
         Constructor
 
         Args:
-            name (str): Name/type of gat
+            name (str): Name/type of the quantum gate
             params (list,tuple): Parameter for the gate (may be empty)
         """
 
@@ -50,7 +50,6 @@ def apply_gate(gate, qubits):
     """
     Apply a gate to some qubits while separating control and target qubits.
 
-
     Args:
         gate (BasicGate): Instance of a ProjectQ gate
         qubits (list): List of ProjectQ qubits the gate applies to.