[add] validations
Merge pull request #2 from IlnurG/ig/add/validation

[add] validations
[add] changing name & password
Merge pull request #3 from IlnurG/ig/add/personal_cabinet

[add] changing name & password
[add] step statistics
Merge pull request #4 from IlnurG/ig/add/statistic

[add] step statistics
[add] friendly if for instructions
Merge pull request #5 from IlnurG/ig/add/friend_id

[add] friendly if for instructions
[add] statistic table style
Merge pull request #6 from IlnurG/ig/add/statistic_info

[add] statistic table style
[feature] public access link
Merge pull request #7 from IlnurG/ig/feature/access_link

[feature] public access link
[hack] normalize video link
Merge pull request #8 from IlnurG/ig/hack/normalize_link

[hack] normalize video link
temporary comit markup
form styles and add simple parallax effect
fixed navs and some styling with some markup