sixth finished???

Author: Gankra

src/SUMMARY.md

@@ -51,7 +51,9 @@
     * [Filling In Random Bits](sixth-random-bits.md)   
     * [Testing](sixth-testing.md)
     * [Send, Sync, and Compile Tests](sixth-send-sync.md)
-    * [Cursors](sixth-cursors.md)   
+    * [An Introduction To Cursors](sixth-cursors-intro.md)   
+    * [Implementing Cursors](sixth-cursors-impl.md) 
+    * [Testing Cursors](sixth-cursors-testing.md) 
     * [Final Code](sixth-final.md)
 * [A Bunch of Silly Lists](infinity.md)
     * [The Double Single](infinity-double-single.md)