Complete the London setup: London System line

Repeat the setup. Develop your other knight, support the central pawn and bring out your remaining bishop.

1. d4
2. d5
3. Bf4
4. c5
5. e3
6. Nc6
7. Nf3
8. Bg4
9. Nbd2
10. e6
11. c3
12. Nf6
13. Bd3