Sure! If I do a revised version I'll be sure to include that, but I'll answer it in a comment for now. Say you have a passage card.
| Blank | Blank | Blank |
| Blank | Passage | Blank |
| Blank | Blank | Blank |
Passage cards are basically the universal connector. You can put any kind of card next to a passage card, including another passage card. Cards can connect horizontally, vertically, and diagonally.
| Blank | Passage | Blank |
| Blank | Passage | Object |
| Obstacle | Blank | Blank |
Other cards are more limited.
| Blank | Blank | Blank |
| Blank | Object | Passage |
| Blank | Blank | Blank |
If you wanted to place a card to the left of the Object card in the middle of the table above, you could only place a Passage card. But you could place another Object card above or below the Object card because that card would be connected to the Passage card on the right.
Transit cards are special in that if you place a transit card, you get to place a second transit card on the same turn. You can place your second transit card somewhere else on the map to show that the two points are connected, or you can place the transit card in the middle of nowhere away from all other cards to show that this transit point takes you to an entirely different location. If you place it in the middle of nowhere, another player would have to attach a Passage card to the Transit card in order to continue going that way because none of the other cards can connect to a transit card.
If an object card is connected to multiple Passage cards, you can decide whether the card applies only one of the connected passages or to more than one.
If you have any more questions feel free to ask!