readme update

Author: Chris Wu

README.md

@@ -7,9 +7,7 @@ If you like my answer, a star on GitHub means a lot to me.
 https://github.com/wuduhren/leetcode-python
 
 # Roadmap
-1. This [list](https://docs.google.com/spreadsheets/d/1SbpY-04Cz8EWw3A_LBUmDEXKUMO31DBjfeMoA0dlfIA/edit#gid=126913158) is made by **huahua**, I found this on his [youtube](https://www.youtube.com/user/xxfflower/videos).
-
-2. I found it make sense to do similar problem together, so that we can recognize the problem faster when we encounter a new one.
+I found it make sense to do similar problem together, so that we can recognize the problem faster when we encounter a new one.
 
 ### Two Pointers
 |  Id | Name | Difficulty | Comments |
@@ -139,6 +137,8 @@ https://github.com/wuduhren/leetcode-python
 |  307 | [Range Sum Query - Mutable](https://leetcode.com/problems/range-sum-query-mutable "Range Sum Query - Mutable") | ★★★ |  |  |  |  |  | BIT/Segment Tree |
 |  901 | [Online Stock Span](https://leetcode.com/problems/online-stock-span "Online Stock Span") | ★★★ | [907](https://leetcode.com/problems/sum-of-subarray-minimums "907") |  |  |  | 1019 | monotonic stack |
 
+This [list](https://docs.google.com/spreadsheets/d/1SbpY-04Cz8EWw3A_LBUmDEXKUMO31DBjfeMoA0dlfIA/edit#gid=126913158) is made by **huahua**, I found this on his [youtube](https://www.youtube.com/user/xxfflower/videos).
+
 # Other Resources
 These are the interview resources I personally used and only if it is really helpful I will put it here.