added sitemap
Revert "added sitemap"

This reverts commit e1471ec9b752b9256ed87264278bc3afb3bf2b54.
Revert "Revert "added sitemap""

This reverts commit c666468e0724f085accfcc97a04f9d54ef99d8a9.
Revert "Revert "Revert "added sitemap"""

This reverts commit f398b55e298941a22542506e656c6a249e3dd832.
merged