Add a static file 'sitemap.xml'

This commit uses 'html_extra_path' to add static files in
the project root. For details, see:

    https://www.sphinx-doc.org/en/master/usage/configuration.html#confval-html_extra_path

Signed-off-by: Fujimoto Seiji <fujimoto@ceptord.net>

Author: yoshimotoyuk

Makefile

@@ -16,7 +16,6 @@ help:
 docs: html
 	rm -rf docs
 	mv build/html docs
-	cp googlecd24172c95f0d5b3.html docs
 
 .PHONY: help Makefile docs
 

source/conf.py

@@ -59,6 +59,10 @@
 html_show_copyright = False
 html_show_sphinx = False
 html_copy_source = False
+html_extra_path = [
+    'sitemap.xml',
+    'googlecd24172c95f0d5b3.html'
+]
 
 html_theme_options = {
     "icon_links": [

googlecd24172c95f0d5b3.html source/googlecd24172c95f0d5b3.htmlgooglecd24172c95f0d5b3.html renamed to source/googlecd24172c95f0d5b3.html

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+
+<url>
+  <loc>https://www.flexconfirmmail.com/</loc>
+  <priority>1.0</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/quickstart.html</loc>
+  <priority>0.8</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/howto.html</loc>
+  <priority>0.8</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/download.html</loc>
+  <priority>0.8</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/support.html</loc>
+  <priority>0.8</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/enterprise.html</loc>
+  <priority>0.8</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/index.html</loc>
+  <priority>0.7</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/thankyou.html</loc>
+  <priority>0.7</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+<url>
+  <loc>https://www.flexconfirmmail.com/_images/release.svg</loc>
+  <priority>0.7</priority>
+  <lastmod>2022-12-03T18:11:15+09:00</lastmod>
+</url>
+
+</urlset>