Remove repeated word

tutorials.rst

@@ -116,7 +116,7 @@ At every step of a tutorial, the user experiences a moment of anxiety: will this
 
 Keep up a narrative of expectations: "You will notice that ..."; "After a few moments, the server responds with ...". Show the user actual example output, or even the exact expected output.
 
-If you know know in advance what the likely signs of going wrong are, consider flagging them: "If the output doesn't show ..., you have probably forgotten to ...".
+If you know in advance what the likely signs of going wrong are, consider flagging them: "If the output doesn't show ..., you have probably forgotten to ...".
 
 It's helpful to prepare the user for possibly surprising actions: "The command will probably return several hundred lines of logs in your terminal."
 
@@ -254,4 +254,4 @@ Meanwhile, the cooking lesson might be framed around the idea of learning how to
 
 The child learns all this by working alongside you in the kitchen; in its own time, at its own pace, **through the activities** you do together, and not from the things you say or show.
 
-With a young child, you will often find that the lesson suddenly has to end before you'd completed what you set out to do. This is normal and expected; children have short attention spans. But as long as the child managed to achieve something - however small - and enjoyed doing it, it will have laid down something in the construction of its technical expertise, that can be returned to and built upon next time.
+With a young child, you will often find that the lesson suddenly has to end before you'd completed what you set out to do. This is normal and expected; children have short attention spans. But as long as the child managed to achieve something - however small - and enjoyed doing it, it will have laid down something in the construction of its technical expertise, that can be returned to and built upon next time.