Added check to CoMPAS if document exists.

Signed-off-by: Dennis Labordus <[email protected]>

Author: Dennis Labordus

__snapshots__/compas-save-to.md

@@ -39,6 +39,7 @@
   nullable=""
 >
 </wizard-textfield>
+
 ```
 
 ## `existing document in compas`
@@ -55,21 +56,6 @@
   nullable=""
 >
 </wizard-textfield>
-```
-
-## `loading from compas`
-
-####   `looks like the latest snapshot`
 
-```html
-<mwc-list>
-  <mwc-list-item
-    aria-disabled="false"
-    mwc-list-item=""
-    tabindex="0"
-  >
-    [compas.loading]
-  </mwc-list-item>
-</mwc-list>
 ```