Fix incomplete sentence

mmore500 · mmore500 · commit 4a4785c4bb05 · 2020-07-17T13:15:18.000-04:00
diff --git a/blog_professional/_posts/2020-07-16-blog-guide.md b/blog_professional/_posts/2020-07-16-blog-guide.md
@@ -231,7 +231,7 @@ For example, to reference [Section mY `eXAmPlE`  SUBSECTION!? :cat:](#my-example
 
 Sections and subsections work exactly the same way.
 
-If you're unsure what the anchor key will be for a
+If you're unsure what the anchor ID will be for a subsection, serve a local copy of the site and click on the anchor link next to the subsection title to reveal the anchor ID in your browser's url bar.
 
 ### mY `eXAmPlE` SUBSECTION!? :cat:
 
