added norwegian and hreflang

[tobiasmcvey]

Added

• Norwegian localisation of homepage
• Autogenerating hreflang tags for translated content so Google knows about each version
• Language selection bar

[kakawait]

@tobmcv why did you close that MR? I'm pretty interessed by your additions

[tobiasmcvey]

I was trying to make it work on my copy of the repo first and mistakenly submitted it too early. I've managed to make it work now so I'll resubmit my suggestions.

[tobiasmcvey]

I have updated the branch now. It only adds 2 things now

• A yaml file for Norwegian bokmål, one of the 2 written official versions of Norwegian.
• A function that generates hreflang tags for translated pages on a multilingual blog. These tags are respected by Google and will show the most relevant translated page in search results for people.

Hreflang tags use ISO-codes and can be used to specify languages as well as combinations of languages and country targeting.

Read more about hreflang and the ISO-codes here https://support.google.com/webmasters/answer/189077?hl=en

[tobiasmcvey]

@kakawait can you review the PR now? It's as complete as I can make it right now.

[kakawait]

@tobiasmcvey I'll do on next day. Thank you for contribution

[kakawait]

@tobiasmcvey sorry for delay (see https://github.com/kakawait/hugo-tranquilpeak-theme/blob/master/CHANGELOG.md#forwords for more details).

Since you've created there were new keys, do you think you can translate it? I'm totally zero on Norwegian :)

See diff: https://www.diffchecker.com/UtlKyBsw

- id: "global.read_more_about_author"
  translation: "Read more about the author"
- id: "global.zoom_in_on_picture"
  translation: "Zoom in on the picture"
- id: "global.go_to_homepage"
  translation: "Go to homepage"
- id: "global.open_link"
  translation: "Open the link"
- id: "global.open_post"
  translation: "Open the post"
- id: "post.comment"
  translation: "Leave a comment"
- id: "post.back_to_top"
  translation: "Back to top"
- id: "post.share"
  translation: "Share this post"
- id: "post.gallery"
  translation: "Gallery"
- id: "post.image.one"
  translation: "image"
- id: "post.image.other"
  translation: "{n} images"