fix(markdown): Restructure part reference. See #2981

markdown/dev/reference/api/part/getid/en.md

@@ -0,0 +1,37 @@
+---
+title: Part.getId()
+---
+
+The `Part.getId()` methid will return an integer the can be used as an
+for ID Points/Paths/Snippets. This method will ensure the ID is unique by
+keeping an internal incremental counter of the IDs that have been used.
+It is typically used when programatically adding points, paths, or snippets.
+
+<Tip>
+This method can be destructured as `getID` 
+in [a part's draft method](/reference/api/part/draft).
+</Tip>
+
+
+## Part.getId() signature
+
+```js
+int|string getId(prefix='')
+```
+
+This methiod takes an optional parameter that will be used as a prefix for the ID.
+
+## Part.getId() example
+
+```js
+cont part = {
+  name: 'examples.getid',
+  draft: ({ Point, points, getId, part }) => {
+    for (let i=0;i<10;i++) {
+      points[getId()] = new Point(i*10, i*10)
+    }
+
+    return part
+  }
+}
+```