modified: ../config/sidebar.yml

	modified:   index.mdx

src/config/sidebar.yml

@@ -22,8 +22,8 @@
       link: '/part1/simple_detector'
     - label: 'Part 2: Adding Detectors'
       link: '/part2/adding_detectors'
-        #    - label: 'Part 3: Runing the Simulating'
-        #      link: '/part3/simulating_detectors'
+    - label: 'Part 3: Digitization and Reconstruction'
+      link: '/part3/running_juggler'
         #    - label: 'Part 4: Sensitive Detectors'
         #      link: '/part4/sensitive_detector'
 - label: References

src/docs/index.mdx

@@ -15,11 +15,11 @@ together to get some results and serve as a jumping off point for further develo
 
 - [Quick start](getting-started/quickstart) - Start here to download software and configure your development environment.
 
-- [Part 1](part1/simple_detector.md) - An introduction to using compact detector descriptions, running Geant4 simulation, and processing the data using DD4hep hooks. 
+- [Part 1](part1/simple_detector) - An introduction to using compact detector descriptions, running Geant4 simulation, and processing the data using DD4hep hooks. 
 
-- [Part 2](part2/adding_detectors.md) - A basic example of how to create new detector geometries, add new sensitive detector constructors, and extend existing detector libraries.
+- [Part 2](part2/adding_detectors) - A basic example of how to create new detector geometries, add new sensitive detector constructors, and extend existing detector libraries.
 
-- [Part 3](part3/running_juggler.md) - Running Juggler  reconstruction
+- [Part 3](part3/running_juggler) - Running Juggler  reconstruction
 
 
 ## Background Discussion