Remove extra step and add command line open instructions

Author: crichID

book/06a_activity_create_file.md

@@ -2,7 +2,6 @@
 
 Now it is time to put an image and a caption into your file:
 
-1. Find an image that you want to caption
 1. Find your file, `named 2010-02-##-USERNAME.md`.
 1. Open your file in your favorite text editor.
 1. Copy and paste the image text into your file on line 6.
@@ -15,4 +14,6 @@ Now it is time to put an image and a caption into your file:
         ```
 1. *Save* your file.
 
-> Git doesn't care how you work with your files locally. You can work in your favorite IDE or text editor, or you can use VIM through the command line.
+> Git doesn't care how you work with your files locally. You can work in your favorite IDE or text editor, or you can use VIM through the command line. 
+
+> To open your file from the command line, many IDEs and text editors offer shortcuts. For example, to open the project in Atom, you can use `atom .` and to open it in Visual Studio Code you can use `code .`.