Update oss.mdx

Fix typo

Author: hieu-ht

docs/getting-started/quick-start/oss.mdx

@@ -15,7 +15,7 @@ import {VerticalStepper} from '@clickhouse/click-ui/bundled';
 
 # ClickHouse OSS quick start
 
-> In this quick start tutorial, we'll get you set up with OSS ClickHousein 8
+> In this quick start tutorial, we'll get you set up with OSS ClickHouse in 8
 easy steps. You'll download an appropriate binary for your OS,
 learn to run ClickHouse server, and use the ClickHouse client to create a table,
 then insert data into it and run a query to select that data.