basic processor documentation layout

src/content/docs/processors/string/encode.md

@@ -0,0 +1,13 @@
+---
+title: Encode
+sidebar:
+    order: 1
+---
+The string encode processor takes a string and turns it into an array of bytes. This processor will return an error if the message being processed is not a string.
+
+- **type**: `string.encode`
+
+### Example
+```
+- type: string.encode
+```