Oracle case study (#1386)

* Oracle case study

* Oracle case study, minor fixes

* JSON format inside tables, InfoBox and Warning components, Markdown imdage component

* Title modification

* Banner change, JSON in table format

* Banner change, JSON in table format, InfoBox, Danger

* Banner change, JSON in table format

* Banner change

* Applying blog style

* Rollback to previous version

* Removing duplicate picture.

Author: loiclefevre