style: format markdown files with remark-lint

diff --git a/docs/math/newton.md b/docs/math/newton.md
index 5316816..446fa06 100644 (file)
--- a/docs/math/newton.md
+++ b/docs/math/newton.md
@@ -95,6 +95,6 @@ public static BigInteger isqrtNewton(BigInteger n) {
 ## 习题
 
 -    [UVa 10428 - The Roots](https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=16&page=show_problem&problem=1369) 
--    [LeetCode 69. x 的平方根](https://leetcode-cn.com/problems/sqrtx/)
+-    [LeetCode 69. x 的平方根](https://leetcode-cn.com/problems/sqrtx/) 
 
      **本页面主要译自博文 [Метод Ньютона (касательных) для поиска корней](http://e-maxx.ru/algo/roots_newton) 与其英文翻译版 [Newton's method for finding roots](https://cp-algorithms.com/num_methods/roots_newton.html) 。其中俄文版版权协议为 Public Domain + Leave a Link；英文版版权协议为 CC-BY-SA 4.0。**