Standardise some of our chart conventions
Fixes https://gitlab.com/charts/helm.gitlab.io/issues/129 and https://gitlab.com/charts/helm.gitlab.io/issues/128
Related to: https://gitlab.com/charts/helm.gitlab.io/issues/127
Matching environments repo update is here: https://gitlab.com/gitlab-com/environments/merge_requests/47
Changes use of underscores to be camelCase. (ignoring the omnibus chart)
Picks a common structure for defining the secrets in the values.
Adds a development styleguide page outlining these changes.
Edited by DJ Mountney