tutor: Add a content cycling section (#5161)

runtime/tutor

@@ -985,11 +985,33 @@ lines.
  --> How much would would a wouldchuck chuck
  --> if a wouldchuck could chuck would?
 
- Note: Additionally, Alt-( and Alt-) cycle the *contents* of the
- selections as well.
+
+
+
+=================================================================
+= 10.2 CYCLING THE CONTENT OF SELECTIONS =
+=================================================================
+
+ Type Alt-) and Alt-( to cycle the content of the selections
+ forward and backward respectively.
+
+ 1. Move the cursor to the line marked '-->' below.
+ 2. Select both lines with xx or 2x.
+ 3. Type s to select, type "through|water|know" and enter.
+ 4. Use Alt-( and Alt-) to cycle the content of the selections.
+
+ --> Jumping through the water,
+ --> daring to know.
+
+
+
+
+
+
+
 
 =================================================================
-= 10.2 CHANGING CASE =
+= 10.3 CHANGING CASE =
 =================================================================
 
  Type ~ to switch the case of all selected letters.
@@ -1011,7 +1033,7 @@ lines.
  --> THIS sentence should ALL BE IN uppercase!
 
 =================================================================
-= 10.3 SPLITTING SELECTIONS =
+= 10.4 SPLITTING SELECTIONS =
 =================================================================
 
  Type S to split each selection on a regex pattern.
@@ -1039,6 +1061,7 @@ letters! that is not good grammar. you can fix this.
  * Use ) and ( to cycle the primary selection back and forward
  through selections respectively.
  * Type Alt-, to remove the primary selection.
+ * Type Alt-) and Alt-( to cycle the content of the selections.
 
  * Type ~ to alternate case of selected letters.
  * Use ` and Alt-` to set the case of selected letters to
@@ -1053,7 +1076,6 @@ letters! that is not good grammar. you can fix this.
 
 
 
-
 =================================================================
 = =
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