Revert "again"

This reverts commit e90188d.

Author: BillWagner

docs/csharp/tutorials/exploration/csharp-7.yml

@@ -2,7 +2,7 @@
 title: Explore C# 7 - C# interactive C# tutorial
 metadata:
   title: Explore C# 7 - Try the new features in C# 6 interactively, using your browser
-  description: In this tutorial, you'll use your browser to explore C# 7 interactively. You'll explore the new idioms you can use with C# 7 that enable more concise and readable code.
+  description: In this tutorial, you'll use your browser to explore C# 6 interactively. You'll explore the new idioms you can use with C# 6 that enable more concise and readable code.
   audience: Developer
   level: intermediate
   ms.date: 03/20/2019
@@ -128,11 +128,11 @@ when inspecting the tuple using reflection at runtime, for example.
     Creating a tuple is more efficient and more productive.
     It has a simpler, lightweight syntax to define a data structure that carries
     more than one value. The example method below returns the minimum and maximum
-    values found in a sequence of integers.
+    values found in a sequence of integers:
 
     [!code-csharp[TupleReturningMethod](~/samples/snippets/csharp/new-in-7/program.cs#08_TupleReturningMethod "Tuple returning method")]
 
-    Using tuples in this way offers several advantages.
+    Using tuples in this way offers several advantages:
 
     * You save the work of authoring a `class` or a `struct` that defines the type returned. 
     * You do not need to create new type.
@@ -164,7 +164,7 @@ when inspecting the tuple using reflection at runtime, for example.
     [!code-csharp[DeconstructPoint](~/samples/snippets/csharp/new-in-7/program.cs#12_DeconstructPoint "Deconstruct a point")]
 
     You are not bound by the names defined in the `Deconstruct` method. You
-    can rename the extract variables as part of the assignment. 
+    can rename the extract variables as part of the assignment:  
 
     [!code-csharp[DeconstructNames](~/samples/snippets/csharp/new-in-7/program.cs#13_DeconstructNames "Deconstruct with new names")]