Update code-guide.md (#108)

Fix typo
diff --git a/docs/code-guide.md b/docs/code-guide.md
index 6fc706c..5c1df10 100644
--- a/docs/code-guide.md
+++ b/docs/code-guide.md
@@ -28,7 +28,7 @@
 
 ### Observer Provider
 
-All Observers are setup by [WebindexObservers].  This class wires up everything discussed belowr.
+All Observers are setup by [WebindexObservers].  This class wires up everything discussed below.
 
 ### Page Observer