add underscore in link titles (test).

.directory

@@ -0,0 +1,3 @@
+[Dolphin]
+Timestamp=2020,1,24,0,13,56
+Version=4

CW_Tests-Project-Breakdown.md

@@ -1,4 +1,4 @@
-![cw-tests project selected](cw-tests-selected.png)
+![cw-tests project selected](cw_tests-selected.png)
 
 This is a traditional .Net 4.7 library, written in C#. Its main purpose is to house the solution's unit tests.
 
@@ -9,4 +9,4 @@ Within the project, you will see four files and a folder. Of the four files, you
 * [CW-Tests.csproj](https://git.abbether.net/craig.oates/Console.Waterworks/blob/master/Console.Waterworks/CW-Tests/CW-Tests.csproj)
 * [packages.config](https://git.abbether.net/craig.oates/Console.Waterworks/blob/master/Console.Waterworks/CW-Tests/packages.config)
 
-![cw-tests file structure](cw-tests-file-structure.png)
+![cw-tests file structure](cw_tests-file-structure.png)