Well, I am not really fond of taking in eggs from the wild to hatch at home. Be sure you know that if you go ahead with this project you are committing to taking care of these animals for possibly a long time. It's best to leave the wild in the wilderness; in other words, I think it would have been better if yu had left the eggs where you found them.
That said, the way to incubate the eggs depends largely on the species you are dealing with. Aside from temperature, humidity is another important factor you need to consider. Since we don't know what you have, let's just try this:
There are different ways of how you can incubate the eggs. In each case, you will need vermaculite, which you will moisten 1:1 (weight/weight). In other words, if you use 30 g of vermaculite you will add 30 g of water. For this, you need a scale. Tare the scale once you place the empty container on it, then add the vermaculite and after that add equal weight of water.
It is crucial that you will keep the vermaculite moist, yet not wet. Which brings us to the container.
You could use a plastic container (Glad, deli container of any sort) or a plastic drinking cup (16 ounces) per one egg covered by a perforated plastic sandwich bag held in place by a rubber band. Either works. If you choose the In either case, I'd perforate the cover to assure oxygenation of the eggs. This however, increases the risk of the vermaculite drying out. I have placed the cups in shoe boxes and kept them in the closed boxes for the incubation, which has worked fine in the past.
The temperature will possibly determine the sex of your animals, but that once again depends on the species. Try to keep the temp between at least 25 degrees Celsius (77 Fahrenheit) and 31 degree Celsius (88 Fahrenheit).
Now, once you have decided on the container, filled it with vermaculite and added the water to the vermaculite you need to candle the eggs. For that you hold the eggs to a lamp (either a strong flashlight or a table lamp will do). Turn it carefully until you can see the embryo through the shell. The embryo will look like a red oval sturcture. Place the egg into the cup with the embryo facing up. Close the container, place it into the shoe box, place the box at the sight you want it to be and keep checking daily for hatching.