Added docs for exposed pods

[danielsagi]

Description

Exposed pods was lacking a vid and a corresponding khv page. From now on its KHV052

Contribution checklist

• [x] I have read the Contributing Guidelines.
• [ ] The commits refer to an active issue in the repository.
• [ ] I have added automated testing to cover this case.

[codecov[bot]]

Codecov Report

Merging #407 (716d531) into master (d7168af) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #407   +/-   ##
=======================================
  Coverage   63.52%   63.52%           
=======================================
  Files          42       42           
  Lines        2289     2289           
=======================================
  Hits         1454     1454           
  Misses        835      835           

Impacted Files	Coverage Δ
kube_hunter/modules/hunting/kubelet.py	60.00% <ø> (ø)

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