create index page for IESG statements

[ghwood]

URL

Should be created at:

https://beta.ietf.org/iesg/statements/

Should redirect via:

https://www.ietf.org/iesg/statement.html

Expected Behavior

(What did you think was supposed to happen? How did you think it should look?)

Actual Behavior

(include a screen shot if you like)

Reproducing

• Browser:
• OS: [Operating System name] [Version]
• (anything else you think we might need to reproduce this)

[ghwood]

Done.