Update README.md

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Author: AlexanderHodicke

ai-and-app-modernisation/content-management/README.md

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 Oracle's content management offering is Oracle WebCenter which is the center of engagement for business powering exceptional experiences for customers, partners, and employees. Namely, it consists of Oracle WebCenter Content (covering Document Management/Enterprise Content Management, Records Management, Imaging, Capture and Forms Recognition), WebCenter Sites (Digital Experience/Web Content Management platform) & Oracle WebCenter Portal platform for creating intranets, extranets, composite applications, and self-service portals.
 
-Oracle Webcenter can be hosted either onpremise or on Oracle Cloud Infrastructure.
+Oracle WebCenter can be hosted either on-premises or on Oracle Cloud Infrastructure.
 
 Oracle Content Management (OCM) was Oracle’s strategic Cloud Native Content Hub; it acted as a Managed PaaS Service running on next-generation Oracle Cloud Infrastructure. The service is still available for existing customers. It covers Digital Asset Management and Video Production(Sauce), Document Collaboration, Capture and Enterprise Content Management, Digital Experience Platform (Low Code and Headless Development) as well as packaged applications within OCM like Video Hub, Email Builder, Sales Accelerator.