Add Xray deets

docs/focus/2018-04-02.md

@@ -10,6 +10,8 @@
   - Published [Teletype 0.11.0](https://github.com/atom/teletype/releases/tag/v.0.11.0) with support for [sharing and joining a portal via URL](https://blog.atom.io/2018/03/29/new-in-teletype-faster-setup-and-improved-multi-file-support.html#joining-a-portal-is-as-easy-as-clicking-a-link)
   - Updated RFC for streamlining collaboration set-up to incorporate feedback, and opened it up for another round of comments ([atom/teletype#344](https://github.com/atom/teletype/pull/344))
 - Xray
+ - [A PR with an initial implementation of a file finder UI](https://github.com/atom/xray/pull/55) is nearly complete.
+ - See the [in-depth Xray update for this week](https://github.com/atom/xray/blob/master/docs/updates/2018_04_02.md) for details.
 - Reactor Duty
   - `TextEditor.scan` methods with zero-length matches at line endings skip the next line: [#16983](https://github.com/atom/atom/issues/16983), fixed by [atom/superstring#53](https://github.com/atom/superstring/pull/53)
   - Prevent modifications to readonly editors: [#16736](https://github.com/atom/atom/issues/16736), fixed by [#16999](https://github.com/atom/atom/pull/16999) and (thanks @maxbrunsfeld) [#17050](https://github.com/atom/atom/pull/17050)
@@ -36,4 +38,8 @@
   - Fix error recovery performance bug discovered in Atom last week
   - Working on the C# grammar (@damieng)
 - Xray
+ - Merge the [file finder PR](https://github.com/atom/xray/pull/55).
+ - Start on headless shared workspaces.
+ - See the [in-depth Xray update for this week](https://github.com/atom/xray/blob/master/docs/updates/2018_04_02.md) for details.
+
 - Reactor Duty