diff --git a/Introduction.md b/Introduction.md
index a8bd4e0..3cb8c43 100644
--- a/Introduction.md
+++ b/Introduction.md
@@ -2,11 +2,12 @@ This is an internal toolbox for analyzing data especially got by labscript of ul
 
 Now, it includes
 
-Constant dictionary class for 
-* Transition related information (including calculator of absorption cross section) 
-** Camera related information
-** get the absorption imaging from standard three figures.
+* Constant dictionary class for 
+    * Transition related information (including calculator of absorption cross section) 
+        * Camera related information
+        * get the absorption imaging from standard three figures.
+
 * fitting function, which can automatically find the start point 
-** One-dimensional Gaussian fitting 
-** Two-dimensional Gaussian fitting 
-** Fit a two-dimensional Gaussian function with two one-dimensional Gaussian fittings crossing the max value point. This function is aiming to provide a fast solution for living plots.
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+    * One-dimensional Gaussian fitting 
+    * Two-dimensional Gaussian fitting 
+    * Fit a two-dimensional Gaussian function with two one-dimensional Gaussian fittings crossing the max value point. This function is aiming to provide a fast solution for living plots.
\ No newline at end of file