Update runtime files
diff --git a/runtime/tutor/tutor.utf-8 b/runtime/tutor/tutor.utf-8
index ed3d076..fdfd09c 100644
--- a/runtime/tutor/tutor.utf-8
+++ b/runtime/tutor/tutor.utf-8
@@ -319,7 +319,7 @@
---> 6) Sugar is sweet
---> 7) And so are you.
-Doubling to operate on a line also works for operators mentioned below
+Doubling to operate on a line also works for operators mentioned below.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lesson 2.7: THE UNDO COMMAND
@@ -433,7 +433,7 @@
---> This line has a few words that need changing using the change operator.
Notice that ce deletes the word and places you in Insert mode.
- cc does the same for the whole line
+ cc does the same for the whole line.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -804,7 +804,7 @@
b)
NOTE: You can also use y as an operator: yw yanks one word,
- yy yanks the whole line, then p puts that line
+ yy yanks the whole line, then p puts that line.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lesson 6.5: SET OPTION