fix spacing

Author: andrewrosemberg

class07/Kalman Filtering.html class07/Kalman_Filtering.htmlclass07/Kalman Filtering.html renamed to class07/Kalman_Filtering.html

@@ -18,10 +18,10 @@ plutos = [
     joinpath(repo_dir, "class02", "part3_ipm.html"),
     joinpath(repo_dir, "class03", "class3_pluto_notebook.html"),
     joinpath(repo_dir, "class05", "class05.html"),
-    joinpath(repo_dir, "class07", "Kalman Filtering.html"),
-    joinpath(repo_dir, "class07", "Linear Quadratic Guassian.html"),
-    joinpath(repo_dir, "class07", "Robust Control.html"),
-    joinpath(repo_dir, "class07", "Unscented Control.html"),
+    joinpath(repo_dir, "class07", "Kalman_Filtering.html"),
+    joinpath(repo_dir, "class07", "Linear_Quadratic_Gaussian.html"),
+    joinpath(repo_dir, "class07", "Robust_Control.html"),
+    joinpath(repo_dir, "class07", "Unscented_Control.html"),
     joinpath(repo_dir, "class08", "class08.html"),
     joinpath(repo_dir, "class11", "class11.html"),
     joinpath(repo_dir, "class15", "class15.html"),