Update indentation doc

Author: liufengyun

docs/docs/reference/other-new-features/indentation.md

@@ -109,7 +109,7 @@ end largeMethod
 ```
 An `end` marker consists of the identifier `end` which follows an `<outdent>` token, and is in turn followed on the same line by exactly one other token, which is either an identifier or one of the reserved words
 ```scala
-if  while  for  match  try  new
+if  while  for  match  try  new  given
 ```
 If `end` is followed by a reserved word, the compiler checks that the marker closes an indentation region belonging to a construct that starts with the reserved word. If it is followed by an identifier _id_, the compiler checks that the marker closes a definition
 that defines _id_ or a package clause that refers to _id_.