Merge pull request #3818 from ClickHouse/Blargian-patch-18

Fix title

Author: Blargian

docs/getting-started/install/install.mdx

@@ -16,7 +16,7 @@ import MacOSProd from './_snippets/_macos.md'
 import Docker from './_snippets/_docker.md'
 import {CardPrimary} from '@clickhouse/click-ui/bundled';
 
-# Installation Instructions
+# Installation instructions
 
 <CardPrimary
     alignContent="center"