The METHODS attributes of anchors and links provide information about the
functions that the user may perform on an object. These are more accurately
given by the HTTP protocol when it is used, but it may, for similar reasons as
for the TITLE= attribute, be useful to include the information in advance in the
link. For example, the HTML user agent may chose a different rendering as a
function of the methods allowed; for example, something that is searchable may
get a different icon.
The value of the METHODS attribute is a comma separated list of HTTP methods
supported by the object for public use.