Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Update Course-3.md
Added sample demo for Course 3 (HTML5 input types only for now)
Update README.md
Update README.md
Merge pull request #4 from erikescueta/master

Added Course 3 content (notes + code snippets) and sample HTML demo (HTML5 inputs for now)