Add documentation on hiding meta description field from the cms

[yakky]

Given the number of requests received regarding this, we'd better document this behavior

[codecov[bot]]

Codecov Report

Merging #91 into develop will not change coverage. The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop      #91   +/-   ##
========================================
  Coverage    87.93%   87.93%           
========================================
  Files            8        8           
  Lines          373      373           
  Branches        47       47           
========================================
  Hits           328      328           
  Misses          33       33           
  Partials        12       12

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[coveralls]

Coverage remained the same at 91.247% when pulling 836c8c94f8707184707aabcaa350e6cf87c44951 on hotfix/hide-field-meta into 87cf403481a1de89977bcac9b731988c0bf09bfb on develop.

[coveralls]

Coverage remained the same at 91.247% when pulling 836c8c94f8707184707aabcaa350e6cf87c44951 on hotfix/hide-field-meta into 87cf403481a1de89977bcac9b731988c0bf09bfb on develop.

[coveralls]

Coverage remained the same at 91.247% when pulling 836c8c94f8707184707aabcaa350e6cf87c44951 on hotfix/hide-field-meta into 87cf403481a1de89977bcac9b731988c0bf09bfb on develop.

[coveralls]

Coverage remained the same at 91.247% when pulling 836c8c94f8707184707aabcaa350e6cf87c44951 on hotfix/hide-field-meta into 87cf403481a1de89977bcac9b731988c0bf09bfb on develop.