update docs

Author: adelinn

README.md

@@ -67,7 +67,7 @@ Once it is running, run the following command (from host) to install the extensi
 docker compose exec -it my-directus npx directus schema-sync install --force
 ```
 
-	We are using force since we do want to replace the `schema-sync` folder already added as a volumn
+	We are using force since we do want to replace the `schema-sync` folder already added as a volume
 
 ---
 
@@ -85,6 +85,8 @@ View and edit the schema-sync/*_config.js_ file to include the collections you w
 To automatically import and export the schema and data, set the `SCHEMA_SYNC` environment variable to `IMPORT`, `EXPORT` or `BOTH`.
 In production it is advised to set `SCHEMA_SYNC` to `IMPORT` and in local development to `BOTH`.
 
+Note: This extension will not work if there is no row in the `directus_settings` database table. To avoid this happening, make sure `PROJECT_NAME` configuration variable is set when Directus is first time installed into the database. Alternatively, if Directus is already installed, just manually create a row in `directus_settings`, if one is not already there, with whatever project name you want and keep everything else to defaults.
+
 ### Tips
 
 **Order matters** when importing and exporting. For example if you have a collection (A) with a relation to another collection (B), then ensure in the config that collection (B) comes first. This is so when we import, we first import B, then A. Deletions happen afterward in the reverse order.