docs: convert non-string types to strings
docs: convert non-string types to strings

Ensure that the fields put into tables are strings before we try
to apply string-like operations to them.

jboss-openshift/application-templates,errantepiphany/application-templates,rnetuka/application-templates,kyguy/application-templates,bdecoste/application-templates,josefkarasek/application-templates,knrc/application-templates,bparees/application-templates,rcernich/application-templates,douglaspalmer/application-templates