Update the CHANGELOG.md file.

CHANGELOG.md

    provide access to the new espeak-ng functionality.
 *  Fixed many logic and security issues reported by clang scan-build, Coverity
    and msvc /analyze.
+*  Group languages by their language family and use BCP47 compliant names.
+*  Support for Windows and BSD platforms.
+*  Removed support for WinCE, MS-DOS and RiscOS.
 
 build:
 
 *  Build the code with a C99 compiler, instead of a C++ compiler.
+*  Provide a pkg-config file (patch by Luke Yelavich).
 *  Use -fPIC to support sparc/sparc64 architectures.
 *  Use the system's portaudio header files.
 *  Use the system's sonic library and header files.
 *  Output phoneme compilation errors to stderr.
 *  Generate build failures if building phoneme, intonation or dictionary files
    contain errors.
-*  Provide modern Visual Studio project files to build eSpeak NG on Windows.
+*  Provide modern Visual Studio project files to build eSpeak NG on Windows,
+   with a WiX-based project to create an MSI installer.
 *  Use the NetBSD `getopt_long` implementation on Windows.
 
 restructuring:
 *  Moved the library code to `src/libespeak-ng`.
 *  Renamed `espeak` to `espeak-ng`.
 *  Renamed `speak` to `speak-ng`.
+*  Use the `libespeak-ng` API in `speak-ng` using a shared implementation with
+   `espeak-ng`.
 *  Moved the code to build the mbrola voice data, phoneme tables and intonation
    data to libespeak-ng.
 *  Removed the `espeakedit` program and the associated wxWidgets dependency.
 *  Converted the documentation to markdown.
 *  Group the Windows and POSIX mbrowrap code to provide the `mbrowrap.h`
    implementation in a single place.
+*  Use the `wave_*` APIs in synchronous playback mode.
 
 cleanup: