bold words are spelling mistakes
well, very first sentence
3rd section of Your Background
1st section of Your Planets
4th section of Your Planets
3rd section of Cosmical Clouds
Section 10 of Cosmical Clouds
Section 1 of Second Planet
And last sentence, I'm not sure if it meant to be l33tsp3ak.
After reading the last paragraph i found out your German so i can understand the mistakes, if you have firefox as your browser you can download dictionaries to your computer i'm sure internet explorer and safari has the same feature. Like english. Once again nice tutorial.
If you need any help finding the right spellings for words you can always ask me
Oh and i missed 1 mistake but i can't remember where it was.
edit: here's what i made
click to enlarge