Completes all exercises on Streams

Signed-off-by: Irina Chichikova <diva.artim@gmail.com>
Adds some text on Resume, JavaScript Road Trip Part 2

Signed-off-by: Irina Chichikova <diva.artim@gmail.com>
Fixes Declared Functions

Signed-off-by: Irina Chichikova <diva.artim@gmail.com>