Add README to local plugins

studio/plugins/dashboard-widget-structure-menu/README.md

+# dashboard-widget-structure-menu
+
+Widget for the dashboard with links to the document types in the Studio.
\ No newline at end of file

studio/plugins/dashboard-widget-structure-menu/src/props.js

-import {combineLatest} from 'rxjs'
-import {map} from 'rxjs/operators'
-import {loadStructure} from './lib/structure'
+import { combineLatest } from 'rxjs'
+import { map } from 'rxjs/operators'
+import { loadStructure } from './lib/structure'
 
 export function toPropsStream(props$) {
   const structure$ = loadStructure()
 
-  return combineLatest(props$, structure$).pipe(
-    map(([props, structure]) => ({...props, structure})),
+  return combineLatest([props$, structure$]).pipe(
+    map(([props, structure]) => ({ ...props, structure })),
   )
 }

studio/plugins/import-tool/README.md

+# import-tool
+
+Import objects from Marcus and NB and authority data from Kulturnav into Sanity.
\ No newline at end of file

studio/plugins/sanity-plugin-iiif-manifest-input/README.md

 # Sanity Plugin IIIF Manifest Input
 
+*NOT WORKING!!!*
+
 Add a IIIF viewer for IIIF Manifest urls.
 
 You might get CORS issues with this plugin. api.nb.no at least makes IIIF a bit easier :-).