Update Md reference files using pandoc 2.9.2.1

CONTRIBUTING.org

@@ -12,7 +12,7 @@ patches accepted.
 As a bonus, once you have assigned your copyright to FSF, doors open up
 for your future contributions to Emacs too!
 * Contribute to documentation
-*See [[https://ox-hugo.scripter.co/doc/requirements#doc_contributor_reqs/][Requirements for doc contributor]].*
+*See [[https://ox-hugo.scripter.co/doc/requirements/#doc_contributor_reqs][Requirements for doc contributor]].*
 
 1. Clone this repo.
 2. Add/edit documentation to =doc/ox-hugo-manual.org=.
@@ -24,7 +24,7 @@ for your future contributions to Emacs too!
 5. Commit *only the .org files*, push branch and create PR.
    - The =.org= → =.md= conversion is done by =ox-hugo= on Netlify.
 * Contribute to code
-*See [[https://ox-hugo.scripter.co/doc/requirements#code_contributor_reqs/][Requirements for code contributor]].*
+*See [[https://ox-hugo.scripter.co/doc/requirements/#code_contributor_reqs][Requirements for code contributor]].*
 
 1. Clone this repo.
 2. Add/edit the .el files, *tests* in =test/site/content-org/=, and
@@ -54,5 +54,6 @@ error backtrace,
 * Test
 1. Clone this repo.
 2. Ensure that ~pandoc~ and ~pandoc-citeproc~ (at least version
-   [[https://github.com/jgm/pandoc/releases/tag/2.9.2.1][*2.9.2.1*]]) are installed (more info [[https://ox-hugo.scripter.co/doc/contributing-guide/#contribute-to-code][here]]).
+   [[https://github.com/jgm/pandoc/releases/tag/2.9.2.1][*2.9.2.1*]]) are installed (more info
+   [[https://ox-hugo.scripter.co/doc/contributing-guide/#contribute-to-code][here]]).
 3. Run =make -j1 test=.

README.org

@@ -454,10 +454,10 @@ See the new section added to documentation:
 - Fix incorrectly inserted hard line-breaks #[[https://github.com/kaushalmodi/ox-hugo/issues/72][72]]. Added a
   new option =HUGO_PRESERVE_FILLING=.
 - Fix error happening when a post title was set to an empty string
-  [[[https://github.com/kaushalmodi/ox-hugo/commit/ba9e8365f6ee42f030ed806bf5ec42d6acce4c76][ba9e8365]]].
+  [ [[https://github.com/kaushalmodi/ox-hugo/commit/ba9e8365f6ee42f030ed806bf5ec42d6acce4c76][ba9e8365]] ].
 *** Backward-incompatible changes
 - Switch the default value of =org-hugo-use-code-for-kbd= option to
- =nil= [[[https://github.com/kaushalmodi/ox-hugo/commit/88ba15ae9bc809b0983315446c88fecfda3534e5][88ba15ae]]].
+ =nil= [ [[https://github.com/kaushalmodi/ox-hugo/commit/88ba15ae9bc809b0983315446c88fecfda3534e5][88ba15ae]] ].
 ** v0.1.3 <2017-09-13 Wed>
 - Now a HUGO key value set to ="nil"=, like =#+hugo_code_fence: nil=,
   will evaluate as /nil/ instead of /t/, as now

test/site/content/posts/citation-forms-apa-csl.md

@@ -65,7 +65,7 @@ citations," [n.d.](#ref-rmdCitations)) for more.
 
 ## References {#references}
 
-<div id="refs" class="references">
+<div id="refs" class="references hanging-indent">
   <div></div>
 
 

test/site/content/posts/citation-forms.md

@@ -62,7 +62,7 @@ Citations," [n.d.](#ref-rmdCitations)) for more.
 
 ## References {#references}
 
-<div id="refs" class="references">
+<div id="refs" class="references hanging-indent">
   <div></div>
 
 

test/site/content/posts/citation-linking.md

@@ -15,7 +15,7 @@ footnote citation.[^fn:1]
 
 ## References {#references}
 
-<div id="refs" class="references">
+<div id="refs" class="references hanging-indent">
   <div></div>
 
 

test/site/content/posts/citations-example-toml.md

@@ -84,7 +84,7 @@ Some text.
 
 ## References {#references}
 
-<div id="refs" class="references">
+<div id="refs" class="references hanging-indent">
   <div></div>
 
 

test/site/content/posts/citations-example-yaml.md

@@ -24,7 +24,7 @@ Content in section 2.
 
 ## References {#references}
 
-<div id="refs" class="references">
+<div id="refs" class="references hanging-indent">
   <div></div>
 
 

test/site/content/posts/citations-with-captions/index.md

@@ -41,7 +41,7 @@ Snippet 1</a></span>: Nested Boxes using PlantUML
 
 ## References {#references}
 
-<div id="refs" class="references">
+<div id="refs" class="references hanging-indent">
   <div></div>