Update docs to reflect the current status

Author: misl6

doc/source/quickstart.rst

@@ -56,48 +56,45 @@ You can also test the master branch from Github using::
 
     pip install git+https://github.com/kivy/python-for-android.git
 
-Installing Dependencies
+Installing Prerequisites
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-p4a has several dependencies that must be installed:
-
-- ant
-- autoconf (for libffi and other recipes)
-- automake
-- ccache (optional)
-- cmake (required for some native code recipes like jpeg's recipe)
-- cython (can be installed via pip)
-- gcc
-- git
-- libncurses (including 32 bit)
-- libtool (for libffi and recipes)
-- libssl-dev (for TLS/SSL support on hostpython3 and recipe)
-- openjdk-8
-- patch
-- python3
-- unzip
-- virtualenv (can be installed via pip)
-- zlib (including 32 bit)
-- zip
-
-On recent versions of Ubuntu and its derivatives you may be able to
-install most of these with::
-
-    sudo dpkg --add-architecture i386
-    sudo apt-get update
-    sudo apt-get install -y build-essential ccache git zlib1g-dev python3 python3-dev libncurses5:i386 libstdc++6:i386 zlib1g:i386 openjdk-8-jdk unzip ant ccache autoconf libtool libssl-dev
-
-On Arch Linux you should be able to run the following to
-install most of the dependencies (note: this list may not be
-complete)::
+p4a requires a few dependencies to be installed on your system to work
+properly. While we're working on a way to automate pre-requisites checks,
+suggestions and installation on all platforms (macOS is already supported),
+on Linux distros you'll need to install them manually.
 
-    sudo pacman -S core/autoconf core/automake core/gcc core/make core/patch core/pkgconf extra/cmake extra/jdk8-openjdk extra/python-pip extra/unzip extra/zip
+On recent versions of Ubuntu and its derivatives you can easily install them via
+the following command (re-adapted from the `Dockerfile` we use to perform CI builds)::
 
-On macOS::
+    sudo apt-get update
+    sudo apt-get install -y \
+        ant \
+        autoconf \
+        automake \
+        ccache \
+        cmake \
+        g++ \
+        gcc \
+        git \
+        lbzip2 \
+        libffi-dev \
+        libltdl-dev \
+        libtool \
+        libssl-dev \
+        openjdk-17-jdk \
+        patch \
+        unzip \
+        zip \
+        pkg-config \
+        python3 \
+        python3-dev \
+        python3-pip \
+        python3-venv \
+        make \
+        sudo \
+        wget
 
-    brew install autoconf automake libtool openssl pkg-config
-    brew tap homebrew/cask-versions
-    brew install --cask homebrew/cask-versions/adoptopenjdk8
 
 Installing Android SDK
 ~~~~~~~~~~~~~~~~~~~~~~