Lottery Contract test and fixes

### Expected Behavior
Lottery Contract should be usable from 0 to 1.

### Specifications
As a developer, I would like to learn how to create a lottery game contract so that I can create my own game.

**Features:**
- Lottery contract documentation can be run.

**Development Tasks:**
- [x] Lottery contract can be run from 0 to 1

### Dependencies
nil

### References
nil