Document boolean math sugar

Author: carson-katri

book/src/SUMMARY.md

@@ -20,6 +20,7 @@
     - [Generators](./api/advanced-scripting/generators.md)
     - [Input Groups](./api/advanced-scripting/input-groups.md)
     - [Attributes](./api/advanced-scripting/attributes.md)
+    - [Boolean Math](./api/advanced-scripting/boolean-math.md)
 
 # Tutorials
 

book/src/api/advanced-scripting/boolean-math.md

@@ -0,0 +1,40 @@
+# Boolean Math
+
+The *Boolean Math* node gives access to common boolean operations, such as `AND`, `NOT`, `XOR`, etc.
+
+However, it can be cumbersome to use the `boolean_math` function in complex boolean expressions.
+
+```python
+# Check if the two values equal, or if the first is true.
+x = False
+y = True
+return boolean_math(
+    operation=BooleanMath.Operation.OR
+    boolean=(
+        boolean_math(
+            operation=BooleanMath.Operation.XNOR # Equal
+            boolean=(x, y)
+        ),
+        x
+    )
+)
+```
+
+A few operators are available to make boolean math easier and more readable.
+
+```python
+# Check if the two values equal, or if the first is true.
+x = False
+y = True
+return (x == y) | x
+```
+
+The operators available are:
+
+* `==` - `XNOR`
+* `!=` - `XOR`
+* `|` - `OR`
+* `&` - `AND`
+* `~` - `NOT`
+
+> You *cannot* use the built-in Python keywords `and`, `or`, and `not`. You must use the custom operators above to create *Boolean Math* nodes.