Added docs for Symfony Polyfill components#9846

Closed

javiereguiluz wants to merge 4 commits intosymfony:2.8from

javiereguiluz:fix_6052

Commits on May 28, 2018

Added docs for Symfony Polyfill components
javiereguiluz
committed

Commits on May 29, 2018

Commits on May 31, 2018

Added the docs for the PHP polyfills
javiereguiluz
committed