modify : index.html  add 'update'
Revert "modify : index.html  add 'update'"

This reverts commit a5dc22e3ab2bfb339832d54f9e50aff7ccbab976.
Revert "Revert "modify : index.html  add 'update'""

This reverts commit 9010c5e2e64d3513b6184e8b86a49afe30cf06d3.
modify : index.html add look
new test.txt
auto-commit