add more processor documentation

src/content/docs/processors/float/parse.md

@@ -0,0 +1,18 @@
+---
+title: Float Parse
+sidebar:
+    order: 1
+---
+The `float.parse` processor takes a string and parses it as a float with the specified `base` and `bitSize`. This processor will return an error if the message being processed is not a string or if the string cannot be parsed into a float.
+
+- **type**: `float.parse`
+- **params**:
+    - **bitSize**: (optional) the bit size of the float to parse, defaults to 64
+
+### Example
+This would parse the string payload as a 32 bit float and set the payload to that value.
+```
+- type: float.parse
+  params:
+    bitSize: 32
+```