style: format code and docs with prettier

Author: pranjal030404

solution/0000-0099/0008.String to Integer (atoi)/README.md

@@ -385,8 +385,10 @@ class Solution {
     }
 }
 ```
+
 #### C
-``` C 
+
+```C
 int myAtoi(char* s) {
     int i = 0;
     int sign = 1;

solution/0000-0099/0008.String to Integer (atoi)/README_EN.md

@@ -376,7 +376,7 @@ class Solution {
 
 #### C
 
-``` C 
+```C
 int myAtoi(char* s) {
     int i = 0;
     int sign = 1;

solution/0000-0099/0009.Palindrome Number/README.md

@@ -250,7 +250,7 @@ class Solution {
 
 #### C
 
-``` C
+```C
 bool isPalindrome(int x) {
     if (x < 0)
         return false;

solution/0000-0099/0009.Palindrome Number/README_EN.md

@@ -242,7 +242,7 @@ class Solution {
 
 #### C
 
-``` C
+```C
 bool isPalindrome(int x) {
     if (x < 0)
         return false;