PyLadies site tweaks

- s/lekce/srazy/ -- this is not formal education
- remove my photo (it's terrible & stands out too much)
- don't direct strangers to my personal profile on facebook.com
- ask more advanced PyLadies to come as well
- CSS: make <small> actually small
- link to Github
Merge pull request #60 from encukou/pyladies

PyLadies site tweaks