update page links in index.html

Signed-off-by: PythonShell <pythonshell@yeah.net>
update page index

Signed-off-by: PythonShell <pythonshell@yeah.net>
embed keep fit page

Signed-off-by: PythonShell <pythonshell@yeah.net>
update

Signed-off-by: PythonShell <pythonshell@yeah.net>