Update 3-add-a-code-example.md (#96)

* Update 3-add-a-code-example.md

Deleted first use of code blocks.  Changed last comma to a semi-colon.

* Update .github/steps/3-add-a-code-example.md

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Co-authored-by: Kevin Heis <heiskr@users.noreply.github.com>

.github/steps/3-add-a-code-example.md

@@ -8,7 +8,7 @@
 
 _Great job adding an image to the file :tada:_
 
-In addition to code blocks, some code blocks should be rendered differently depending on the language, such as JavaScript or command-line text.
+Let's add some code blocks. Code blocks can render differently depending on the language.
 
 ### Example 1