chore: add package level comments

solutions/24/q2402/solution.go

@@ -1,3 +1,4 @@
+// Package q2402 implements a solution for https://leetcode.com/problems/meeting-rooms-iii/
 package q2402
 
 import (

solutions/24/q2405/solution.go

@@ -1,3 +1,4 @@
+// Package q2405 implements a solution for https://leetcode.com/problems/optimal-partition-of-string/
 package q2405
 
 func partitionString(s string) int {

solutions/24/q2462/solution.go

@@ -1,3 +1,4 @@
+// Package q2462 implements a solution for https://leetcode.com/problems/total-cost-to-hire-k-workers/
 package q2462
 
 import "container/heap"

solutions/24/q2483/solution.go

@@ -1,3 +1,4 @@
+// Package q2483 implements a solution for https://leetcode.com/problems/minimum-penalty-for-a-shop/
 package q2483
 
 func bestClosingTime(customers string) int {