convert all .md to .mdx

src/content/docs/processors/string/create.mdx

@@ -0,0 +1,19 @@
+---
+title: Create String
+sidebar:
+    label: Create
+    order: 3
+---
+The `string.create` processor creates a string based on the provided template. This processor will return an error if there is an issue executing the template. The template property is just a [Go template](https://pkg.go.dev/text/template) that will be evaluated with the incoming message provided as an environment.
+
+- **type**: `string.create`
+- **params**:
+    - **template**: string template that will have the incoming message as the context
+
+### Example
+This would create a string using the `Address` property of the incoming message like and OSC message
+```yaml
+- type: string.create
+  params: 
+    template: "{{.Address}}
+```