feat/Add pipeline to push on trainnes

.gitignore

.gitlab-ci.yml

README.md

old/docs/0.guide/000.setup.md

old/docs/0.guide/100.npm.md

old/docs/0.guide/1000.ending.md

old/docs/0.guide/200.spa.md

old/docs/0.guide/202.webpack.md

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old/docs/0.guide/300-es6-classes.md

old/docs/0.guide/301-Let-and-const.md

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old/docs/0.guide/310.functionnal-programming.md

old/docs/0.guide/320-promises.md

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old/docs/0.guide/700-babel.md

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old/docs/0.guide/900.practice/910.practise.md