docs(zsh): add comments to .zshrc

zsh/.zshrc

@@ -1,22 +1,28 @@
-# Path to your oh-my-zsh installation.
+# add ~/bin & /usr/local/bin to $PATH
+export PATH=$HOME/bin:/usr/local/bin:$PATH
+
+# location of oh-my-zsh installation
 export ZSH=$HOME/.oh-my-zsh
 
 # theme
 ZSH_THEME="ys"
 
-# disable omz updates
+# automatically update oh-my-zsh without being prompted
 DISABLE_UPDATE_PROMPT=true
-DISABLE_AUTO_UPDATE=true
 
 # plugins
-plugins=(common-aliases git sudo gpg-agent ssh-agent)
+plugins=(
+    common-aliases
+    git
+    sudo
+    gpg-agent
+    ssh-agent
+    docker
+)
 
 # zsh-completions
 autoload -U compinit && compinit
 
-# add ~/bin and /usr/local/bin to $PATH
-export PATH=$HOME/bin:/usr/local/bin:$PATH
-
 # source omz
 source $ZSH/oh-my-zsh.sh
 
@@ -27,3 +33,7 @@ setopt EXTENDED_HISTORY
 
 # reduce linux syscalls
 export TZ=:/etc/localtime
+
+# ensure system is aware of browser/editor preference
+export BROWSER="firefox-nightly"
+export EDITOR="nvim"