Fix a link

Fix typo in announcement regarding domain change

Update announcement message in conf.py

Update announcement with corrected domain links

Update tri lattice documentation with new links

Fix formatting of links in mclc index documentation

Fix formatting of links in ORCF index documentation

Fix link description for mclc5 in index.rst

Update index.rst

Update links for rhl lattice documentation

Update ORCI lattice link in user guide

Update ORCF index with additional lattice links

Update index.rst

Update index.rst

Update index.rst