escaped some backslashes in docstrings

pyzx/drawing.py

@@ -543,7 +543,7 @@ def pretty_complex(z: complex) -> str:
                 else:
                     out += f"{r:.2f}".rstrip("0").rstrip(".")
                 if abs(f) > 1:
-                    out += f"\cdot 10^{{{-f}}}"
+                    out += f"\\cdot 10^{{{-f}}}"
 
     minus = ""
     if arg < 0:

pyzx/generate.py

@@ -130,7 +130,7 @@ def CNOT_HAD_PHASE_circuit(
         clifford:bool=False
         ) -> Circuit:
     """Construct a Circuit consisting of CNOT, HAD and phase gates.
-    The default phase gate is the T gate, but if ``clifford=True``\ , then
+    The default phase gate is the T gate, but if ``clifford=True``\\ , then
     this is replaced by the S gate.
 
     Args:

pyzx/todd.py

@@ -207,7 +207,7 @@ def phase_gates_to_poly(gates: List[Gate], qubits: int) -> Tuple[ParityPolynomia
 
 
 def xi(m: Mat2, z: List[Z2]) -> Mat2:
-    """Constructs the \chi matrix from the TOpt paper."""
+    """Constructs the \\chi matrix from the TOpt paper."""
     arr = np.asarray(m.data)
     rows = m.rows()
     data = []