added geodata importer tips

docs/.vuepress/sidebar.js

@@ -4,6 +4,7 @@ export default [
         collapsible: true,
         children: [
             '/user/guide',
+            '/user/geodata',
             '/user/thesaurex',
             '/user/data-model',
             '/user/entity-type',

docs/user/geodata.md

@@ -0,0 +1,12 @@
+# Spatial Data
+
+## Import (Workaround)
+
+::: danger 
+This will likely change in the future and is more a workaround for the time being.
+:::
+
+When you want to base your imported entities on spatial data, that should be included on the map, then you should follow these steps:
+
+1. Import your data file using the GeoData importer. This generates all required entities.
+2. Import the data again using the Data Importer and update the created entities.