Reflect API 0.7 move to RESTORING

Update ANALYZING to RESTORING in the text as this change happened in
API version 0.7.

Signed-off-by: Aidan Delaney <[email protected]>

Author: AidanDelaney

content/docs/buildpack-author-guide/create-buildpack/detection.md

@@ -50,7 +50,7 @@ ERROR: failed to build: executing lifecycle: failed with status code: 51
 
 Notice that `detect` now passes because there is a valid `Gemfile` in the Ruby app at `ruby-sample-app`, but now `build` fails because it is currently written to error out.
 
-You will also notice that `ANALYZING` now appears in the build output. This step is part of the buildpack lifecycle that looks to see if any previous image builds have layers that the buildpack can re-use. We will get into this topic in more detail later.
+You will also notice that `RESTORING` now appears in the build output. This step is part of the buildpack lifecycle that looks to see if any previous image builds have layers that the buildpack can re-use. We will get into this topic in more detail later.
 
 <!--+if false+-->
 ---