message: Add 1.2 support to README
diff: @@ -17,7 +17,7 @@ A very lightweight wrapper around Vulkan
  - [x] Device local function pointer loading
  - [x] No validation, everything is **unsafe**
  - [x] Generated from `vk.xml`
  -- [x] Support for Vulkan 1.1
  +- [x] Support for Vulkan `1.1`, `1.2`
  ## Features
  ### Explicit returns with `Result`
  