Update README.md

README.md

@@ -6,19 +6,29 @@ Color and Black-and-White Apple color emoji fonts, and tools for working with th
 
 The code provided is for educational purposes only. Apple is a trademark of Apple Inc., registered in the U.S. and other countries.
 
-## Building AppleColorEmoji
-
-Building AppleColorEmoji currently requires a Python 2.x wide build.  To build
-the emoji font you will require a few files from nototools.  Clone a copy from
-https://github.com/googlei18n/nototools and either put it in your PYTHONPATH or
-use 'python setup.py develop' ('install' currently won't fully install all the
-data used by nototools).  You will also need fontTools, get it from
-https://github.com/behdad/fonttools.git.
-
-Then run `make` and `make install`.  AppleColorEmoji is the default target.
-It's suggested to use -j, especially if you are using zopflipng for compression.
-Intermediate products (compressed image files, for example) will be put into a
-build subdirectory; the font will be at the top level.
+## Installing prebuilt AppleColorEmoji font
+
+- Download the latest release of `AppleColorEmoji.ttf` at the [Release Page](https://github.com/samuelngs/apple-emoji-linux/releases)
+- Copy `AppleColorEmoji.ttf` to `~/.local/share/fonts`.
+- Rebuild the font cache with `fc-cache -f -v`.
+- Now you are set!
+
+## Building AppleColorEmoji from source
+
+- Install Python 2, building `AppleColorEmoji.ttf` currently requires a Python 2.x wide build.
+- Install [fonttools python package](https://github.com/fonttools/fonttools).
+  - On the command line, enter: `python -m pip install fonttools`
+- Install [nototools python package](https://github.com/googlei18n/nototools).
+  - On the command line, enter: `python -m pip install https://github.com/googlefonts/nototools/archive/v0.2.1.tar.gz`, or
+    clone a copy from https://github.com/googlei18n/nototools and either put it in your PYTHONPATH or use `python setup.py
+    develop` ('install' currently won't fully install all the data used by nototools).
+- Install [Optipng](http://optipng.sourceforge.net/), [Zopfli](https://github.com/google/zopfli) and [Pngquant](https://pngquant.org/).
+  - On RedHat based systems, run `yum install optipng zopfli pngquant`
+  - Or on Debian or Ubuntu, you may run `apt-get install optipng zopfli pngquant` at the command line.
+- Clone the [source repository](https://github.com/samuelngs/apple-emoji-linux) from Github
+- Open a terminal or console prompt, change to the directory where you cloned `apple-emoji-linux`, and type `make -j` to build `AppleColorEmoji.ttf` from source.
+- If you wish to install the built `AppleColorEmoji.ttf` to your system, execute `make install`,
+- Then rebuild the your system font cache with `fc-cache -f -v`
 
 ## Using AppleColorEmoji