Update Omelet.md

Added ingredients and instructions for Cheese Omelet

src/Omelet.md

@@ -1,6 +1,6 @@
 # Omelet
 
-* Produces roughly 4 Omelets
+- Produces roughly 4 Omelets
 
 ## Ingredients
 
@@ -11,20 +11,26 @@
 * 1 tablespoon butter, or margarine
 * 4 egg yolks, beaten until thick
 * 4 egg whites, beaten stiff
+* Cheddar Cheese (optional for Cheese Omelet)
 
 ## Directions
 1. Add tapioca, salt and pepper to milk; cook in double boiler 15 minutes or until tapioca is clear and mixture thickened, stirring  frequently.
 2. Add butter.
-3. Cool; combine with egg yolks, stirring constantly.
+3. Allow it to cool; combine with egg yolks, stirring occasionally.
 4. Fold in egg whites.
-5. Set oven for moderate 350f.
-6. Pour egg mixture into hot buttered 9-inch frying pan.
+5. Set oven for moderate 350°F.
+6. Pour egg mixture into hot buttered frying pan.
 7. Cook over low heat 3 minutes.
 8. Transfer to oven; bake 15 minutes.
 9. Omelet is done when an inserted knife comes out clean.
 10. Cut across at right angles to handle of pan, being careful not to cut all the way through.
 11. Fold carefully from handle to opposite side and serve on hot platter.
 
+### For Cheese Omelet
+
+* Add 1/2 cup grated sharp Cheddar Cheese just before folding in egg whites.
+* Before putting omelet in oven, sprinkle top with an additional 1/2 cup of grated cheese.
+
 ## Contribution
 
-* Anonymous
+- Anonymous