How do I remap folder to different folder in URL?
Yes you can do this with remapping in .htaccess

Find this code:

# Various rewrite rules.
&lt;IfModule mod_rewrite.c&gt;
  RewriteEngine on


And add this line after it:

RewriteRule ^product-details/my-demo/(.*) my-demo/$1


So the complete version will be:

# Various rewrite rules.
&lt;IfModule mod_rewrite.c&gt;
  RewriteEngine on
  RewriteRule ^product-details/my-demo/(.*) my-demo/$1


See documentation for more examples.