[recipes] Fix a typo

[Andre Klapper <aklapper src gnome org>]

commit 93bea002b52cc39c9a88b8786472a50e46600a09
Author: Andre Klapper <a9016009 gmx de>
Date:   Sun Sep 17 14:55:03 2017 +0200

    Fix a typo

 help/C/cooking.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/cooking.page b/help/C/cooking.page
index 7358846..f20bee5 100644
--- a/help/C/cooking.page
+++ b/help/C/cooking.page
@@ -24,7 +24,7 @@
   easy to view the steps to make a recipe, including starting timers 
   or seeing photos of each step, if they were included in the recipe.</p>
   
-  <p>To start cooking with hands-free mode:</p>.
+  <p>To start cooking with hands-free mode:</p>
   <steps>
     <item>
       <p>Open the recipe you want to cook.