Merge pull request #51 from bashbaug/unified_env_spec

remove 2.2 from the SPIR-V Environment Spec link
tree: 54f26744548b66e0cbce02cde73346348d8da055
  1. README.adoc
  2. api/
  3. extensions/
  4. index.php
  5. sdk/
  6. specs/
  7. xml/