Format code in README.md for consistency

Author: yanglbme

solution/0700-0799/0772.Basic Calculator III/README.md

@@ -80,23 +80,24 @@ class Solution:
             while q:
                 c = q.popleft()
                 if c.isdigit():
-                    num = num*10 + int(c)
-                if c == '(':
+                    num = num * 10 + int(c)
+                if c == "(":
                     num = dfs(q)
-                if c in '+-*/)' or not q:
+                if c in "+-*/)" or not q:
                     match sign:
                         case "+":
                             stk.append(num)
                         case "-":
                             stk.append(-num)
                         case "*":
-                            stk.append(stk.pop()*num)
+                            stk.append(stk.pop() * num)
                         case "/":
-                            stk.append(int(stk.pop()/num))
+                            stk.append(int(stk.pop() / num))
                     num, sign = 0, c
                 if c == ")":
                     break
             return sum(stk)
+
         return dfs(deque(s))
 ```