You are correct. The section on Edges & Hindrances in the Character Creation chapter indicates:
You can take one Major Hindrance and two Minor Hindrances. A Major Hindrance is worth 2 points, and a Minor Hindrance is worth 1 point.
For 2 points you can:
- Gain another attribute point, or
- Choose an Edge
So, if you take your maximum number of Hindrances you get 4 points, and this allows you to choose two separate Edges.
If you start as a human, you also get a free Edge on character creation, so the maximum number of Edges you can start with as a human is three (unless you take the Blind Hindrance, which gives you one more free Edge due to its severity).