Update website-guidelines.md

Adjusted the text of the note about https from future to past tense, as it has happened.

content/pages/website-guidelines.md

@@ -2,7 +2,7 @@ Title: Guidelines for project websites
 
 These guidelines relate to Infra policies on resource consumption, linking, legal use, and site ownership. For policies and guidelines that fall under other committees or directors, please see their respective sites/pages.
 
-**NOTE:**  as of December 1, 2021, all TLP web sites and the main `apache.org` site will start redirecting any pages using `http` to `https` and will set up HTTP Strict Transport Security, or <a href="https://www.globalsign.com/en/blog/what-is-hsts-and-how-do-i-use-it" target="_blank">HSTS</a>. This is at the request of projects and end users and to enhance site security.
+**NOTE:**  In December, 2021 all TLP web sites and the main `apache.org` site started redirecting any pages using `http` to `https` and set up HTTP Strict Transport Security, or <a href="https://www.globalsign.com/en/blog/what-is-hsts-and-how-do-i-use-it" target="_blank">HSTS</a>. This was at the request of projects and end users, to enhance site security.
 
 
 - Projects cannot use tools that require write access to the project repository.