Update index.html

Ensure "OpenMP" is used as an adjective, not a noun, remove (r) from
OpenMP after the first use. Other minor English phrasing changes.
Revert "Update index.html"

This reverts commit 3b0aeac68f25d2a49289834978efd460ab66caa7.
Update index.html

Ensure OpenMP is used as an adjective, not a noun. Remove (r) symbol
after the first use. Tidy some of the English phrasing.
Merge pull request #1 from jcownie-intel/master

Update index.html