Add en-US link for the support portal
The support portal has no explicit
en-US locale in the URL or the permalinks, for example https://support.torproject.org/tbb/tbb-2/ (compare this with https://support.torproject.org/de/tbb/tbb-2/ for Deutsch).
should instead be:
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information