Created option for Moon

Now you can choose between a planet and a moon. The program asks the user input for these things:

• moon name
• mission name
• gravity
• extra info

Then this is stored into a dictionary. Then this puts the data into an excel spreadsheet.

Improvements

I still need to ask the user for the distance of the planet/moon from earth. Then I can calculate the fuel needed to get there.

Maybe use SQL for data?

The user of dictionaries helped a lot in this program. Now I fully understand how it works.