Update hello_wolf_config.yaml

demos/hello_wolf/yaml/hello_wolf_config.yaml

 config:
 
   problem:
-    tree_manager:
-      type: "TreeManagerSlidingWindow"
-      n_frames: -1
-      fix_first_frame: false
-      viral_remove_empty_parent: true
-    frame_structure:      "PO"            # keyframes have position and orientation
+  
     dimension:            2               # space is 2d
+    frame_structure:      "PO"            # keyframes have position and orientation
+  
     prior:
       mode:               "factor"
-      # state:              [0,0,0]
       $state:
         P: [0,0]
         O: [0]
-      # cov:                [[3,3],.01,0,0,0,.01,0,0,0,.01]
       $sigma:
         P: [0.31, 0.31]
         O: [0.31]
       time_tolerance:     0.1
 
+    tree_manager:
+      type: "TreeManagerSlidingWindow"
+      n_frames: -1
+      fix_first_frame: false
+      viral_remove_empty_parent: true
+  
   solver:
     max_num_iterations: 100
     verbose: 0