Merge pull request #51 from bashbaug/unified_env_spec

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