Update README.md

Author: Li Yin

README.md

@@ -1,5 +1,5 @@
-**Join me on discord server: https://discord.gg/ZXnSag7fMP, for early access of the book and a supportive community**
 # *Hands-on Algorithmic Problem Solving*
+### A middle-to-high level algorithm book designed with coding interview at heart!
 
 
 
@@ -165,6 +165,9 @@ Practice is important. Schedule some mocking interviews with [interviewing.io](h
 
 
 
+## Community
+**Join me on discord server: https://discord.gg/ZXnSag7fMP, for early access of the book and a supportive community**
+
 ## Feedback
 If you have ideas to improve the book, about formatting, more contents, or correct the errors, do not hesitate to let me know.