Modify README

-# Algorithm Analysis
-- Lecture Lab
+# Algorithm Analysis - Lecture Lab
 - lecture2_P2_dvide_conquer_mergesort1.py
 - lecture2_P2_dvide_conquer_mergesort2.py
 - lecture3_P2_dvide_conquer_quick.py
@@ -10,14 +9,14 @@
 - lecture10_P6_BB.py
 - lecture11_P7_Sorting.py
 
-- Import File
+# Algorithm Analysis - Import File
 - P3_utility.py
 
-- Warm Up Test Files
+# Algorithm Analysis - Warm Up Test Files
 - test_exsort.py
 - test.py
 - test2.py
 
-- Seperated Function - developing
+# Algorithm Analysis - Seperated Function: developing
 - pythonMathLog.py