[clang] Docs: ambiguous use of "explicitly" in [[clang::no_specializaiton]] (PR #143839)

[Corentin Jabot via cfe-commits]

https://github.com/cor3ntin approved this pull request.

This looks fine. The meaning is clear.
(If anything, the C++ standard should have a better way to talk about "partial or explicit specializations")

https://github.com/llvm/llvm-project/pull/143839