Update docs/developers_guide/building_docs.rst

add info regarding chmod command and info for LCRC

Co-authored-by: Xylar Asay-Davis <[email protected]>

docs/developers_guide/building_docs.rst

@@ -25,9 +25,15 @@ environment when it is sourced in the root of the compass branch.
 You can view the documentation by opening ``_build/html/index.html``.
 From any machine, you can scp the ``html`` directory to your local computer for
 viewing.
+
 On NERSC, you can conveniently make use of their
 `web Science Gateway <https://docs.nersc.gov/services/science-gateways/#web-methods-for-data>`_
 to avoid transferring data.  By copying your compiled documentation to
 an appropriately named subdirectory at
-``/global/cfs/cdirs/myproj/www``, it can then be viewed from a browser at
-``https://portal.nersc.gov/cfs/myproj/``.
+``/global/cfs/cdirs/<myproj>/www/`` and then running ``chmod -R ugo+rX .`` on that directory
+(and perhaps its parent directories), it can then be viewed from a browser at
+``https://portal.nersc.gov/cfs/<myproj>/``.
+
+LCRC also has a web portal.  You can copy the compiled documentation to a subdirectory in
+``/lcrc/group/e3sm/public_html/diagnostic_output/<username>/``.  Then, you can
+view it at ``https://web.lcrc.anl.gov/public/e3sm/diagnostic_output/<username>/``