Add usage comments to scripts

zlogin

@@ -0,0 +1,2 @@
+# .zlogin [3] Used for executing user's commands at ending of initial progress,
+# will be sourced when starting as a login shell.

zlogout

@@ -0,0 +1 @@
+# .zlogout [4] Will be sourced when a login shell exits.

zprofile

@@ -0,0 +1,2 @@
+# .zprofile [1] Used for executing user's commands at start, will be sourced
+# when starting as a login shell.

zshenv

@@ -1,3 +1,7 @@
+# .zshenv [0] Used for setting user's environment variables; it should not
+# contain commands that produce output or assume the shell is attached to a
+# tty. This file will always be sourced.
+
 # Enable saving command history to file
 HISTFILE=$HOME/.histfile
 HISTSIZE=5000

zshrc

@@ -1,3 +1,6 @@
+# .zshrc [2] Used for setting user's interactive shell configuration and
+# executing commands, will be sourced when starting as an interactive shell.
+
 # Load plugin scripts
 plugin-load() { source ~/.config/zsh/$1/$1.plugin.zsh }
 plugin-load zsh-syntax-highlighting