ghwikipp: pandoc now refers to 'gfm' instead of 'markdown_github'.

From 14dbf625e06c2993d82a53339ae5f6b21dd41f58 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Fri, 10 May 2024 04:01:44 +0000
Subject: [PATCH] pandoc now refers to 'gfm' instead of 'markdown_github'.

The latter is deprecated, but appears to be the same, afaict.

"gfm" just stands for "GitHub-flavored Markdown."

This prevents a ton of warnings spammed to the console when
running make_offline_archive.
---
 index.php                | 2 +-
 make_offline_archive.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.php b/index.php
index 6493628..491ad86 100644
--- a/index.php
+++ b/index.php
@@ -3,7 +3,7 @@
 require_once('config.php');
 
 $supported_formats = [
-    'md' => 'markdown_github',
+    'md' => 'gfm',
     'mediawiki' => 'mediawiki'
 ];
 
diff --git a/make_offline_archive.php b/make_offline_archive.php
index ee73a64..6680155 100755
--- a/make_offline_archive.php
+++ b/make_offline_archive.php
@@ -9,7 +9,7 @@
 
 // !!! FIXME: put this in a common.php file or something.
 $supported_formats = [
-    'md' => 'markdown_github',
+    'md' => 'gfm',
     'mediawiki' => 'mediawiki'
 ];