Update KCL docs (#631)

YOYO NEW KCL DOCS!!

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

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content/pages/docs/kcl-lang/settings/project.md

@@ -31,6 +31,23 @@ base_unit = "in"
 
 
 
+#### meta
+
+Information about the project itself. Choices about how settings are merged have prevent me (lee) from easily moving this out of the settings structure.
+
+
+**Default:** None
+
+This setting has the following nested options:
+
+##### id
+
+
+
+
+**Default:** None
+
+
 #### app
 
 The settings for the Design Studio.