[GNC] W3C Web Developer Tools

[Brad Morrison]

Hi GnuCash,

For those web developers (or web users) on this list, I stumbled across 
what seems to be a very helpful toolset from W3C: 
https://w3c.github.io/developers/tools/

That page includes a link checker, a HTML validator, a CSS validator and 
more! It seems like a pretty useful thing to do occasionally, like 
spring cleaning... Or you can annoy all your friends and coworkers by 
having an easy way to point out the various technical issues with their 
websites!

Speaking of which, I ran https://gnucash.org/ through the W3C link 
checker tool https://validator.w3.org/checklink and it took about 67 
seconds on my connection to return plenty of helpful results because if 
there is one thing we all know, it's that the GnuCash developers clearly 
do not have enough work to keep themselves busy!

And not to be overly competitive, but I also plugged in 
https://opentaxsolver.sourceforge.net/index.html and that website only 
took about 51 seconds to complete the link checker process...

In solidarity,

Brad