add the graph (#486)

Author: adela-bytebase

content/docs/tutorials/just-in-time-database-access-part1.md

@@ -13,6 +13,8 @@ In a production environment, an incident arises that requires a developer to acc
 
 This tutorial will guide you through setting up Just-in-Time (JIT) access using the Bytebase GUI. In the next tutorial, we will explore automating JIT access through Slack by leveraging Bytebase webhooks and API.
 
+![jit-graph1](/content/docs/tutorials/just-in-time-database-access-part1/jit-graph1.webp)
+
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 This is Part 1 of our tutorial series on implementing Just-in-Time (JIT) access:

content/docs/tutorials/just-in-time-database-access-part2.md

@@ -13,6 +13,8 @@ In the [previous tutorial](/docs/tutorials/just-in-time-database-access-part1),
 
 When developers need urgent production database access during incidents but lack permissions, they can request Just-in-Time (JIT) access. By triggering the Bytebase webhook, the DBA will receive a notification in Slack immediately and can approve there.
 
+![jit-graph-part2](/content/docs/tutorials/just-in-time-database-access-part2/jit-graph2.webp)
+
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 This is Part 2 of our tutorial series on implementing Just-in-Time (JIT) access: