publish: esp-idf sleep_for() is broken article (#554)

### Summary

Publish a new article, with minor adjustments to grammar.

 ### Test Plan

 - [x] Check link
 - [x] Visual check

Author: gminn

_data/authors.yml

@@ -386,4 +386,4 @@ stevenoonan:
   linkedin: https://www.linkedin.com/in/embeddeddev/
   image: /img/author/stevenoonan.png
   blurb:
-    is Principal Embedded Systems Engineer at Nomo International, Inc.
+    is a Principal Embedded Systems Engineer at Nomo International, Inc.