diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 051c6d6..770268b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -2,13 +2,16 @@
 
 Thanks for your interest in contributing to Go by Example!
 
-* When sending a PR that affects the displayed contents of the site, run
-  `tools/build` locally and include the generated HTML in the PR. Note that
+* When sending a PR that affects the displayed contents of the site, 
   updating the HTML in the `public` directory by itself is insufficient, since
   the source of truth for the website is in the `examples` directory.
   
+  Instead, update the proper source file(s) in the `examples` directory and
+  run `tools/build` locally to regenerate the HTML; include both changes in
+  your PR.  
+  
   If you don't want to deal with getting a proper PR in, feel free to just
-  open an issue an point out the change you suggest.
+  open an issue and point out the change you suggest.
 
 * We're open to adding more examples to the site. They should be on things
   used by many programmers and only require the standard library. If you're