Update content_trust.md (docker#1861)

scjane · johndmulhausen · commit 6b2f5cc8eb92 · 2017-02-20T03:05:23.000-08:00
diff --git a/engine/security/trust/content_trust.md b/engine/security/trust/content_trust.md
@@ -219,7 +219,7 @@ client recognizes this is your first push and:
  - requests a passphrase for the root key
  - generates a root key in the `~/.docker/trust` directory
  - requests a passphrase for the repository key
- - generates a repository key for in the `~/.docker/trust` directory
+ - generates a repository key in the `~/.docker/trust` directory
 
 The passphrase you chose for both the root key and your repository key-pair
 should be randomly generated and stored in a *password manager*.
