Match case of these titles to other docs pages

Author: PeterJCLaw

_data/sidebar_tree.yaml

@@ -103,9 +103,9 @@ tree:
     title: Simulator
     tree:
     - url: /simulator/setting_up_simulator
-      title: Setting up the simulator
+      title: Setting up the Simulator
     - url: /simulator/using_the_simulator
-      title: Using the simulator
+      title: Using the Simulator
     - url: /simulator/simulator_programming
       title: Simulator Programming
   - url: /troubleshooting/

simulator/setting_up_simulator.md

@@ -1,9 +1,9 @@
 ---
 layout: page
-title: Setting up the simulator
+title: Setting up the Simulator
 ---
 
-Setting up the simulator
+Setting up the Simulator
 ========================
 
 ## Prerequisites

simulator/using_the_simulator.md

@@ -1,9 +1,9 @@
 ---
 layout: page
-title: Using the simulator
+title: Using the Simulator
 ---
 
-Using the simulator
+Using the Simulator
 ===================
 
 ## Overview