chore: add package level comments

solutions/34/q3432/solution.go

@@ -1,3 +1,4 @@
+// Package q3432 implements a solution for https://leetcode.com/problems/count-partitions-with-even-sum-difference/
 package q3432
 
 func countPartitions(nums []int) int {

solutions/34/q3453/solution.go

@@ -1,3 +1,4 @@
+// Package q3453 implements a solution for https://leetcode.com/problems/separate-squares-i/
 package q3453
 
 import (

solutions/34/q3454/solution.go

@@ -1,3 +1,4 @@
+// Package q3454 implements a solution for https://leetcode.com/problems/separate-squares-ii/
 package q3454
 
 import (

solutions/34/q3461/solution.go

@@ -1,3 +1,4 @@
+// Package q3461 implements a solution for https://leetcode.com/problems/check-if-digits-are-equal-in-string-after-operations-i/
 package q3461
 
 func hasSameDigits(s string) bool {