No date brakes RSS, revert back to date

CONTRIBUTING.md

@@ -21,7 +21,7 @@ Every post **must have** the following __metadata__:
 ```
 layout: "post"
 title: "some title"
-*date: 2222-01-25
+date: 2222-01-25
 tags:
     - pleroma
 preview:
@@ -30,8 +30,6 @@ url: "https://pleroma.social/link-to-news-source"
 lang: en
 ```
 
-*In "featured" and "wanted" posts `date` is `created`, and must be in quotes, in exactly the right format (YYYY-MM-DD)
-
 `Tags`
 A post may have one of these tags: fediverse, gnusocial, diaspora, friendica, hubzilla, mastodon, postactiv, pleroma, socialhome, ganggo, misskey, peertube, aardwolf
 
@@ -55,7 +53,7 @@ Add this metadata to a post that you wish to show in the upper visible part of t
 `Featured`
 Add this metadata to a new internal website's article, to show the post in a prominent part of the Chronicles page.
 
-`Wanted` and `featured` can't be mixed and are temporary. This metadata must be removed from an older post when creating a new "featured" or "wanted" post. Metadata title `created` must also be changed to `date`.
+`Wanted` and `featured` can't be mixed and are temporary. This metadata must be removed from an older post when creating a new "featured" or "wanted" post.
 
 `Banner`
 Required for "featured" posts only, an image wide enough to be used as a fullscreen background, should be placed in `/source/_posts/exact-post-file-name` folder. See [example](./source/_posts/why-use-federated-networks).

source/_posts/fediverse-info-contributors-wanted.md

@@ -2,7 +2,7 @@
 ---
 layout: "post"
 title: "Contributors wanted (updated)"
-created: "2018-02-05"
+date: 2018-06-21
 tags:
     - fediverse
 preview: "Anyone who knows Python / VueJS or wants to learn those is very welcome to join and help improve The-Federation.Info stats"

source/_posts/why-use-federated-networks.md

@@ -2,7 +2,7 @@
 ---
 layout: "post"
 title: "Why use federated networks (updated)"
-created: "2018-02-27"
+date: 2018-06-21
 tags:
     - fediverse
 preview:

themes/starter/layout/_partial/featured.ejs

@@ -1,6 +1,6 @@
 
 <%
-  const date = post.created;
+  const date = post.date.format(config.date_format).split('-').join('.');
 
   let avatarPath ="";
 

themes/starter/layout/_partial/wanted.ejs

@@ -1,6 +1,6 @@
 
 <%
-  const date = post.created;
+  const date = post.date.format(config.date_format).split('-').join('.');
 %>
 
 <section class="urgent">