fix: linting errors

internal/handler/middleware/wrapper.go

@@ -2,7 +2,7 @@ package middleware
 
 import "net/http"
 
-// Chain list of handlers together.
+// Wrapper wraps a list of handlers together.
 func Wrapper(next http.Handler, handlers ...func(http.Handler) http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		lastHandler := next

internal/types/transaction.go

@@ -6,7 +6,7 @@ import (
 	"github.com/google/uuid"
 )
 
-// At the center of the application is the transaction.
+// Transaction is at the center of the application.
 //
 // Every piece of data should be calculated based on transactions.
 // This means potential calculation errors can be fixed later in time.