Merge pull request #1326 from emmanuel-keller/master

Add Markdown parser integrated using oss-text-extractor #1325
Move here doc for Docker image
Doc: Update main page for FAQ
Doc: add images for docker page
Merge pull request #1329 from AlexandreToyer/master

Doc: move docker doc here, update main page for FAQ
Doc: add page for API database crawler and API Scheduler
Doc: add page for API database crawler and API Scheduler
Merge pull request #1330 from AlexandreToyer/master

Doc: add page for API database crawler and API Scheduler
Doc: fix list for FAQ main page
Merge pull request #1331 from AlexandreToyer/master

Doc: fix list for FAQ main page
Merge remote-tracking branch 'upstream/master'