link to the correct section of the HttpClientGuide:
if someone searches for CSRF (and not XSRF), she will not find the right section in the HttpClient guide
added CSRF as name of XSRF attack:
in order to make it easier to find the XSRF protection, I've added a reference to the other name "CSRF". The security guide has the same reference to XSRF/CSRF.
When I searched for this feature, I had quite some problems to find it because of this missing reference
PR Close#32933