W3C help on perfect code?

[Cerinacy]

Hello everyone,

I ran my site : http://www.alexelliott.org.uk/Moje/Moje1/html/index.html through the W3C code checker and there is one error. Anyone know how I can fix the following coding to make the website coding perfect? Thank you!

Error Line 10, Column 50: Bad value Cache-control for attribute http-equiv on element meta. <meta http-equiv="Cache-control" content="public">

[scottish]

http://www.w3.org/TR/html5/browsers.html#manifests
http://www.w3schools.com/html/html5_app_cache.asp

http-equiv is not valid HTML5, use Cache Manifests

[Cerinacy]

http://www.w3.org/TR/html5/browsers.html#manifests
http://www.w3schools.com/html/html5_app_cache.asp

http-equiv is not valid HTML5, use Cache Manifests

Thank you. So what should the line look like? I understand its purpose.

Thanks.