Documentation (#7633)

Minor spelling fix.

docs/tutorials/blogs/navigation.md

@@ -39,7 +39,7 @@ attach the blog navigation to the rest of the navigation structure.
 
     You will notice that "Blog" is duplicated in the navigation structure. To
     avoid this, you can use the `navigation.indexes` feature to make the blog
-    index the seciton index page for the blog:
+    index the section index page for the blog:
 
     ```yaml hl_lines="3 4"
     theme:
@@ -522,4 +522,4 @@ subscribe to an RSS feed, by providing links to your social media profiles, by
 providing share and like buttons, or by setting up a comment system.
 The [engagement and dissemination tutorial] walks you through setting these up.
 
-[engagement and dissemination tutorial]: engage.md
+[engagement and dissemination tutorial]: engage.md