docs: clean up code formatting in README Quick Start

Signed-off-by: Vedant Madane <6527493+VedantMadane@users.noreply.github.com>

Author: VedantMadane

README.md

@@ -37,8 +37,7 @@ func main() {
 	// urlExample := "postgres://username:password@localhost:5432/database_name"
 	conn, err := pgx.Connect(context.Background(), os.Getenv("DATABASE_URL"))
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "Unable to connect to database: %v
-", err)
+		fmt.Fprintf(os.Stderr, "Unable to connect to database: %v\n", err)
 		os.Exit(1)
 	}
 	defer conn.Close(context.Background())
@@ -47,8 +46,7 @@ func main() {
 	var weight int64
 	err = conn.QueryRow(context.Background(), "select name, weight from widgets where id=$1", 42).Scan(&name, &weight)
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "QueryRow failed: %v
-", err)
+		fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
 		os.Exit(1)
 	}