fix README.md (#16)

Author: aquamatthias

README.md

@@ -78,10 +78,27 @@ destinations:
             key: value
 ```
 
+#### Snowflake
+
+```
+destinations:
+    snowflake:
+        host: myorg-myaccount
+        user: cloud2sql
+        password: changeme
+        database: cloud2sql/public
+        args:
+            warehouse: compute_wh
+            role: accountadmin
+```
+
 #### Apache Parquet
 
 ```
-parquet:///path/to/parquet/directory
+destinations:
+    parquet:
+        path: /path/to/parquet/files
+        batch_size: 100_000
 ```
 
 #### My database is not listed here

config-template.yaml

@@ -97,6 +97,8 @@ sources:
     # Onelogin client secret
     client_secret: null
 destinations:
+  # Define the destination to sync. 
+  # PostgreSQL is listed here as example - see README.md for a list of possible targets.
   posgresql:
     host: 127.0.0.1
     port: 5432