Enhance document for combiner of cpu_vulns_all (#2274)
Enhance document for combiner of cpu_vulns_all (#2274)

* Add document for combiner of cpu_vulns_all

Signed-off-by: Xiaonan He <7b434de22209c31ad29612d4413ddb821403b1dc@redhat.com>

* add blank line for the block quote ends

Signed-off-by: Xiaonan He <7b434de22209c31ad29612d4413ddb821403b1dc@redhat.com>

* update docstring

Signed-off-by: Xiaonan He <7b434de22209c31ad29612d4413ddb821403b1dc@redhat.com>

* update docstring

Signed-off-by: Xiaonan He <7b434de22209c31ad29612d4413ddb821403b1dc@redhat.com>

* add sample back

Signed-off-by: Xiaonan He <7b434de22209c31ad29612d4413ddb821403b1dc@redhat.com>

RedHatInsights/insights-core,RedHatInsights/insights-core