message: Update "coming soon" in docs.
  Fixes
diff: @@ -43,10 +43,13 @@ BrighterScript adds several new features to the BrightScript language such as Na
  - Automatically add a name prefix to all methods inside a namespace block.
  - Prevents method naming collisions and improves code readability and maintainability.
  - Missing method invocations, and other namespace related syntax errors are reported at compile time.
  + - [Ternary operator](https://github.com/rokucommunity/brighterscript/blob/master/docs/ternary-operator.md)
  + - `username = m.user <> invalid ? m.user.name : "not logged in"`
  + - [Template strings](https://github.com/rokucommunity/brighterscript/blob/master/docs/template-strings.md)
  + - ```print `Hello ${firstNameVar}` ```.
  + - [null-coalescing operator](https://github.com/rokucommunity/brighterscript/blob/master/docs/null-coalescing-operator.md)
  + - `user = m.user ?? getDefaultUser()`
  - Additional Language features coming soon
  - - Ternary operator: `username = m.user <> invalid ? m.user.name : "not logged in"`
  - - Template strings: ```print `Hello ${firstNameVar}` ```.
  - - null-coalescing operator: `user = m.user ?? getDefaultUser()`
  - null-conditional operator: `userSettings = m.user?.account?.profile?.settings`
  - and [more](https://github.com/rokucommunity/BrighterScript/blob/master/docs/index.md)...
  