Improve Makefile & shell configs

* Add cross platform support in Makefile

 * Add host-specific configurations support.

README.md

@@ -2,11 +2,27 @@
 
 This repository contains my personal profile configuration.
 
-## VIM
+## Notes
+
+### VIM
 
 The configuration relies on Vundle and expects a Nerd Font.
 
+### ZSH
+
+The configuration relies on [Ho My Zsh](https://ohmyz.sh).
+
+The target to install it is **not** automatically triggered at this time, even with `make all`.
+
+### Host-specific config
+
+You can add host specific configuration by adding named it the following way:
+
 ```sh
-git clone https://github.com/gmarik/vundle.git ~/.vim/bundle/vundle
-vim +BundleInstall +qall
+${hostname}.profile # Used by both zsh & bash
+${hostname}.zshrc
+${hostname}.bashrc
+${hostname}.aliases # Used by both zsh & bash
 ```
+
+If such files exist when you install the configuration files, symlink will be added and they will be automatically picked up by the configuration.