Release v1.6.1

- Some error fixes (#17, #21) by (@L-LYR and @NickLee2050)

Author: colinaaa

README.md

@@ -6,7 +6,7 @@
 
 > 算法课笔记
 
-### ✨[Demo](https://github.com/colinaaa/algorithm-course-notes/releases/download/v1.6.0/book-v1.6.0.pdf)
+### ✨[Demo](https://github.com/colinaaa/algorithm-course-notes/releases/download/v1.6.1/book-v1.6.1.pdf)
 
 ## 添加新章节
 

book.tex

@@ -27,7 +27,7 @@
 \author{计卓1801全体}
 \institute{华中科技大学}
 \date{\zhtoday}
-\version{1.6.0}
+\version{1.6.1}
 \logo{logo.png}
 \cover{cover.png}