Fix Postgres replication tutorial command (#3095)

* Update docker exec command to pull replicated rows.

* Grammar fix on Getting Started guide

Co-authored-by: Abhi Vaidyanatha <abhivaidyanatha@Abhis-MacBook-Pro.local>

docs/getting-started.md

@@ -87,7 +87,7 @@ And there you have it. You've pulled data from an API directly into a file and a
 
 ## That's it!
 
-This is just the beginning of using Airbyte. We support a large collection of sources and destination. You can even contribute your own.
+This is just the beginning of using Airbyte. We support a large collection of sources and destinations. You can even contribute your own.
 
 If you have any questions at all, please reach out to us on [Slack](https://slack.airbyte.io/). We’re still in alpha, so if you see any rough edges or want to request a connector you need, please create an issue on our [Github](https://github.com/airbytehq/airbyte) or leave a thumbs up on an existing issue.
 

docs/tutorials/postgres-replication.md

@@ -96,7 +96,7 @@ One of biggest problems we've seen in tools like Fivetran is the lack of visibil
 Now let's verify that this worked. Let's output the contents of the destination db:
 
 ```text
-docker exec airbyte-destination psql -U postgres -c "SELECT * FROM public.public_users;"
+docker exec airbyte-destination psql -U postgres -c "SELECT * FROM public.users;"
 ```
 
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