docs: clang-format is coming down the pike, mention it

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171380 91177308-0d34-0410-b5e6-96231b3b80d8

docs/Tooling.rst

@@ -94,7 +94,7 @@ Examples of tools we are building or planning as part of the Clang project:
 
 * Syntax checking (:program:`clang-check`)
 * Automatic fixing of compile errors (:program:`clang-fixit`)
-* Automatic code formatting
+* Automatic code formatting (:program:`clang-format`)
 * Migration tools for new features in new language standards
 * Core refactoring tools