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Added Tom's suggestions for docs

Co-authored-by: Thomas R. Bromley <[email protected]>

doc/releases/changelog-dev.md

@@ -426,7 +426,6 @@
   (which is not currently compatible with `KerasLayer`), linking to instructions to enable Keras 2.
   [(#5488)](https://github.com/PennyLaneAI/pennylane/pull/5488)
 
-
 <h3>Breaking changes 💔</h3>
 
 * Applying a `gradient_transform` to a QNode directly now gives the same shape and type independent

pennylane/devices/default_qutrit_mixed.py

@@ -207,7 +207,7 @@ def supports_derivatives(
             circuit (QuantumTape): An optional circuit to check derivatives support for.
 
         Returns:
-            Bool: Whether or not a derivative can be calculated provided the given information.
+            bool: Whether or not a derivative can be calculated provided the given information.
 
         """
         if execution_config is None or execution_config.gradient_method in {"backprop", "best"}:
@@ -252,9 +252,9 @@ def preprocess(
 
         Returns:
             TransformProgram, ExecutionConfig: A transform program that when called returns
-                ``QuantumTape`` objects that the device can natively execute, as well as a postprocessing
-                function to be called after execution, and a configuration with unset
-                specifications filled in.
+            ``QuantumTape`` objects that the device can natively execute, as well as a postprocessing
+            function to be called after execution, and a configuration with unset
+            specifications filled in.
 
         This device: