Add example files for autodiscover service.

DOC/README.vhost.autodiscover

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+# -- autodiscover.<DOMAIN.TLD> -- #
+
+<VirtualHost 83.223.86.98:443 [2a01:30:0:13:211:84ff:feb7:7f9c]:443>
+
+   ServerAdmin admin@<DOMAIN.TLD>
+
+   ServerName autodiscover.<DOMAIN.TLD>
+
+   RewriteEngine On
+   RewriteCond %{REQUEST_FILENAME} -s [OR]
+   RewriteCond %{REQUEST_FILENAME} -l [OR]
+   RewriteCond %{REQUEST_FILENAME} -d
+   RewriteRule ^.*$ - [NC,L]
+   RewriteRule ^.*$ /autodiscover.php [NC,L]
+
+   <FilesMatch \.php$>
+      SetHandler "proxy:unix:/tmp/php-7.3-fpm.www.sock|fcgi://127.0.0.1"
+   </FilesMatch>
+
+   <IfModule dir_module>
+      DirectoryIndex index.php index.html
+   </IfModule>
+
+   DocumentRoot "/var/www/autodiscover.<DOMAIN.TLD>/htdocs"
+   <Directory "/var/www/autodiscover.<DOMAIN.TLD>/htdocs">
+      Options +FollowSymLinks -Indexes
+      AllowOverride Options Indexes Limit FileInfo AuthConfig
+   </Directory>
+
+   SSLEngine on
+
+   SSLCertificateFile /var/lib/dehydrated/certs/autodiscover.<DOMAIN.TLD>/fullchain.pem
+   SSLCertificateKeyFile /var/lib/dehydrated/certs/autodiscover.<DOMAIN.TLD>/privkey.pem
+
+   CustomLog /var/log/apache2/ip_requests.log base_requests
+
+   CustomLog /var/www/autodiscover.<DOMAIN.TLD>/logs/autodiscover.<DOMAIN.TLD>.log combined
+   ErrorLog /var/www/autodiscover.<DOMAIN.TLD>/logs/autodiscover.<DOMAIN.TLD>.error
+
+</VirtualHost>
+