Recommend document root change after installation to /public_html (#5707)

INSTALL

@@ -152,7 +152,9 @@ for even more guidance.
 
 You can also modify the default .htaccess file. This is necessary to
 increase the allowed size of file attachments, for example:
-	php_value       upload_max_filesize     2M
+
+  php_value   upload_max_filesize     5M
+  php_value   post_max_size           6M
 
 
 SECURE YOUR INSTALLATION
@@ -175,7 +177,10 @@ NOTE: In Apache 2.4, support for .htaccess files has been disabled by
 default. Therefore you first need to enable this in your Apache main or
 virtual host config by with:
 
- AllowOverride all
+  AllowOverride all
+
+It is also recommended to change the document root to <install path>/public_html
+after installation.
 
 
 UPGRADING