Update creating-gists.md

Added a clear and brief outline for step 2 in creating  a gist.

Author: aeorck1

content/get-started/writing-on-github/editing-and-sharing-content-with-gists/creating-gists.md

@@ -62,6 +62,8 @@ Follow the steps below to create a gist.
 
 1. Sign in to {% data variables.product.github %}.
 1. Navigate to your {% data variables.gists.gist_homepage %}.
+1. On the top right, click on the "+" icon to create new gist.
+   ![Screenshot of the create new gist. Next to the nofication icon](/assets/images/help/gist/create_new_gist.png) 
 1. Optionally, in the "Gist description" field, type a description for your gist.
 1. In the "Filename including extension" field, type a file name for your gist, including the file extensions.
 1. In the file contents field, type the text of your gist.