Ajoute des formulaires dédiés à l'introduction et la conclusion #2390

Job	Run time
Lint	18s
Lint	18s
Build Sphinx documentation	48s
Build Sphinx documentation	48s
Lint and build front-end	38s
Lint and build front-end	38s
Install and test zds-site (zds.tutorialv2)	40s
Install and test zds-site (zds.tutorialv2)	6m 7s
Install and test zds-site (zds.member zds.gallery zds.searchv2 zds.middlewares zds.pages)	41s
Install and test zds-site (zds.member zds.gallery zds.searchv2 zds.middlewares zds.pages)	3m 23s
Install and test zds-site (zds.forum zds.featured zds.mp zds.notification zds.utils)	36s
Install and test zds-site (zds.forum zds.featured zds.mp zds.notification zds.utils)	4m 2s
Push documentation to GitHub Pages	0s
Push documentation to GitHub Pages	0s
Push coverage to Coveralls	0s
Push coverage to Coveralls	10s
	19m 7s

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