Merge pull request #172 from miyuki-chan/master

Indent some code examples for correct rendering

CppCoreGuidelines.md

@@ -12235,7 +12235,7 @@ This class is a resource handle. It manages the lifetime of the `T`s. To do so,
 
 If `i==0` the file handle for `a file` is leaked. On the other hand, the `ifstream` for `another file` will correctly close its file (upon destruction). If you must use an explicit pointer, rather than a resource handle with specific semantics, use a `unique_ptr` or a `shared_ptr`:
 
-void f(int i)
+	void f(int i)
 	{
 		unique_ptr<FILE> f = fopen("a file","r");
 		// ...