README updates for ES6/ES7 features

README.md

@@ -16,7 +16,8 @@ to call Ecmascript functions from C code and vice versa.
 Main features:
 
 * Embeddable, portable, compact
-* Ecmascript E5/E5.1 compliant
+* Ecmascript E5/E5.1 compliant, some features implemented from
+  Ecmascript 2015 (E6) and Ecmascript 2016 (E7)
 * Khronos/ES6 TypedArray and Node.js Buffer bindings
 * Built-in debugger
 * Built-in regular expression engine

dist-files/README.rst

@@ -7,9 +7,10 @@ intended to be easily embeddable into C programs, with a C API similar in
 spirit to Lua's.
 
 Duktape supports the full E5/E5.1 feature set including errors, Unicode
-strings, and regular expressions, a subset of E6 features (e.g. computed
-property names and Proxy objects), Khronos/ES6 ArrayBuffer/TypedView, and
-Node.js Buffer bindings.
+strings, and regular expressions, a subset of Ecmascript 2015 (E6) and
+Ecmascript 2016 (E7) features (e.g. computed property names, Proxy objects,
+exponentiation operator), Khronos/ES6 ArrayBuffer/TypedView, and Node.js
+Buffer bindings.
 
 Duktape also provides a number of custom features such as error tracebacks,
 additional data types for better C integration, combined reference counting