change notes to see "Implementation Notes" to links to std-notes.html;
links work in html docs but appear as text in info docs;
add link to std-notes.html to getrlimit, setrlimit;
add note to document limitations of getrlimit, setrlimit resources support
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 winsup/doc/posix.xml | 101 ++++++++++++++++++++++++-------------------
 1 file changed, 57 insertions(+), 44 deletions(-)