tweak dev docs

README.development

@@ -20,8 +20,9 @@ To start, make sure you have the following installed:
  - npm
  - your platform's C compiler, eg gcc, Xcode or Visual Studio 2017.
  - GNU make
- - protoc (https://github.com/protocolbuffers/protobuf/releases)
+ - protoc v3 (https://github.com/protocolbuffers/protobuf/releases)
  - rustup (https://rustup.rs/)
+ - pip 19+
 
 Next, build a Python virtual environment and activate it:
 
@@ -58,11 +59,11 @@ Mac users
 
 You can use homebrew to install some dependencies:
 
-$ brew install python mpv lame portaudio
+$ brew install python mpv lame portaudio protobuf npm rustup-init
 
 Windows users
 --------------
 
-The build scripts have not been tested on Windows, and you'll find things
-easiest if you build Anki using WSL.
-https://docs.microsoft.com/en-us/windows/wsl/install-win10
+The build process uses a GNU makefile, so you'll either need to run
+GNU make via WSL (https://docs.microsoft.com/en-us/windows/wsl/install-win10)
+or Cygwin, or manually execute the build steps.