Update c++ introduction

chapters/cpp.md

@@ -1,16 +1,16 @@
 # C++
 
-- JUCE >= C++14
-- C++17 Features
-- C++20 Features
+To use all of the latest JUCE features you should at least use C++14 as your standard. Any newer standard works as well.
 
 ## Idioms
 
+If the list of idioms & language features below seems familiar to you, you're at a great starting point. If not, just google it.
+
 - Inheritance
- - virtual / override
+ - `virtual` / `override` / `final`
+- Composition
 - Lambdas
 - Constexpr
 - Smart Pointer (unique & shared)
 - Container (vectors & arrays)
-- noexcept where possible
-- const where possible
+- Where possible: `noexcept`/`const`