Create frameworks.md
Moved MVC PHP Frameworks to their own file
Create design-patterns.md
Moved Design Patters to their own file
Create security.md
Moved Security to own file
Create performance.md
Moved Performance to own file
Create testing.md
Moved Testing to own file
Create package-manager.md
Moved Package Manager to own file
Promoted Core Documentation to under `core`
Create documentation-generator.md
Moved Documentation Generator to own file
Added Content link for Documentation Generator
Create data-generator.md
Moved Data Generator to own file
Create orms.md
Moved ORMs to own file