Update link text explanation

CONTENT.md

@@ -28,4 +28,4 @@ main = putStrLn "Hello World!"
 ```
 
 And don't forget that linking to content ([](somecontent.md)) and to
-outlines ([](../outline/someoutline.md)) is a good idea.
+outlines ([insert-title](../outline/someoutline.md)) is a good idea.

OUTLINE.md

@@ -18,12 +18,12 @@ Then set up your outline as flat lists in individual sections
 
 ## Section 1
 
-* [](../content/subject1.md)
-* [](../content/subject2.md)
-* [](../content/subject3.md)
+* [insert-title](../content/subject1.md)
+* [insert-title](../content/subject2.md)
+* [insert-title](../content/subject3.md)
 
 ## Section 2
 
-* [](../content/subject4.md)
-* [](../content/subject5.md)
-* [](../content/subject6.md)
+* [insert-title](../content/subject4.md)
+* [insert-title](../content/subject5.md)
+* [insert-title](../content/subject6.md)

README.md

@@ -60,7 +60,7 @@ We should use standard Markdown linking conventions as relative paths. For examp
 
 As a special feature, we *should* provide tooling that automatically fills in
 link text when not provided by grabbing the title from the destination. This
-would be triggered by having a link such as: `[](destination.md)`.
+would be triggered by having a link such as: `[insert-title](destination.md)`.
 
 ## Embedding?