Fix typo in test

"file:https:" is not valid Org link! It has to be either "file:" or
"https:".

Minor update to test site theme.

test/site/content-org/all-posts.org

@@ -290,7 +290,7 @@ Below in Org source:
 #+html: <style>.foo img { border:2px solid black; }</style>
 #+attr_html: :alt Org mode logo
 #+attr_html: :width 300 :class foo
-[[file:https://ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png]]
+[[https://ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png]]
 #+end_src
 
 Rendered this:
@@ -298,7 +298,7 @@ Rendered this:
 #+html: <style>.foo img { border:2px solid black; }</style>
 #+attr_html: :alt Org mode logo
 #+attr_html: :width 300 :class foo
-[[file:https:/ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png]]
+[[https://ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png]]
 
 *NOTE*: We cannot use =:style= in =#+attr_html= because Hugo does not
  /yet/ support a =style= argument in the =figure= shortcode

test/site/content/posts/figure-shortcode-and-attr-html.md

@@ -126,14 +126,14 @@ Below in Org source:
 #+html: <style>.foo img { border:2px solid black; }</style>
 #+attr_html: :alt Org mode logo
 #+attr_html: :width 300 :class foo
-[[file:https://ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png]]
+[[https://ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png]]
 ```
 
 Rendered this:
 
 <style>.foo img { border:2px solid black; }</style>
 
-{{< figure src="https:/ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png" alt="Org mode logo" class="foo" width="300" >}}
+{{< figure src="https://ox-hugo.scripter.co/test/images/org-mode-unicorn-logo.png" alt="Org mode logo" class="foo" width="300" >}}
 
 **NOTE**: We cannot use `:style` in `#+attr_html` because Hugo does not
  _yet_ support a `style` argument in the `figure` shortcode

test/site/themes/bare_min

@@ -1 +1 @@
-Subproject commit 12bdcda2233445da546cec20ab86f02fb9def5da
+Subproject commit 14630bdd17d89d0daddbc9c76553d6d2d87f7252