Merge pull request #2 from TonyDieu/php/php-login

Php/php login
Merge pull request #3 from TonyDieu/php/php-oop-login

Php/php oop login
initial commit for character-counter
add html to index.html character-counter
add alert feature js/c-c
update main.js js/c-c

+ add character counter.
+ add t counter.
add README.md
add README.md js/calc-char
add js/calc-char to repo
Merge branch 'master' into php/php-oop-login