added about.html page 

submitting about.html (sooo happy!!), however I still have the previous environment before Wednesday's meeting. Thanks for the review and suggested improvements. 

I will fetch&merge now all the changes from Wednesday's meeting and try to upgrade the about.html in accordance with current goals. 
Thank you!!!
Take out the "#dodala Petra" part. Code comments are nice if you're explaining why something was done or what's the purpose of something, so the person working on the same piece of code will have an easier life maintaining it, but saying who added what doesn't provide any valuable information - we use git to see who did what ;)