* Add parameters commetns for crossplane definitions
Added parameter comments for ComponentDefinition alibaba-oss
alibaba-rds and TraitDefinition service-binding
* add the result of vela show
* Add cloud service docs for end-users
Split cloud service into two section, one for platform engineers,
and the other for end-users
* correct titles
* adjust componentdefinition and traitdefinition order
* address comments
* add an overview for end user guide
end user guide
* add explore section
* finish scale section
* add expose section
* remove trait already contains as built-in feature
* try fix flaky test