style: format code and docs with prettier

Author: pranjal030404

solution/0000-0099/0005.Longest Palindromic Substring/README.md

@@ -576,7 +576,6 @@ char *longestPalindrome(char *s) {
 
 ```
 
-
 <!-- tabs:end -->
 
 <!-- solution:end -->

solution/0000-0099/0005.Longest Palindromic Substring/README_EN.md

@@ -527,7 +527,7 @@ class Solution {
 
 #### C
 
-``` c 
+```c
 char *longestPalindrome(char *s) {
   int n = strlen(s);
   if (n == 0) {

solution/0000-0099/0006.Zigzag Conversion/README.md

@@ -495,7 +495,7 @@ class Solution {
 
 #### C
 
-``` C 
+```C
 char *convert(char *s, int numRows) {
   if (numRows == 1 || numRows >= strlen(s)) {
     char *result = malloc(strlen(s) + 1);

solution/0000-0099/0006.Zigzag Conversion/README_EN.md

@@ -491,7 +491,7 @@ class Solution {
 }
 ```
 
-#### 
+####
 
 ```c
 char *convert(char *s, int numRows) {