Update README and usage

Author: arunvelsriram

README.md

@@ -1 +1,40 @@
-# ipsec-fzf
+# lazy-connect
+
+Shell function to fuzzy search an IPSec VPN by name and connect to it automatically.
+
+## Prerequisite
+
+[`fzf`](https://github.com/junegunn/fzf) must be available in the PATH.
+
+## Install
+
+```
+git clone https://github.com/arunvelsriram/lazy-connect.git ~/.lazy-connect
+```
+
+```
+# zsh users
+echo "[ -f ~/.lazy-connect/lazy-connect.sh ] && source ~/.lazy-connect/lazy-connect.sh" >> ~/.zshrc
+source ~/.zshrc
+```
+
+```
+# bash users
+echo "[ -f ~/.lazy-connect/lazy-connect.sh ] && source ~/.lazy-connect/lazy-connect.sh" >> ~/.bashrc
+source ~/.bashrc
+```
+
+### Usage
+
+```
+lazy-connect - Shell function to fuzzy search an IPSec VPN by name
+               and connect to it automatically.
+
+-i    - Initialize lazy-connect.
+        Stores the secret and VPN list to ~/.config/lazy-connect/
+-h    - Show this help
+```
+
+### Warning
+
+The secret key to generate TOTP is stored as plain text in `~/.config/lazy-connect/secrete`

lazy-connect.sh

@@ -39,7 +39,8 @@ function _lazy_connect_usage() {
 
 USAGE:
 
-lazy-connect
+lazy-connect - Shell function to fuzzy search an IPSec VPN by name
+               and connect to it automatically.
 
 -i    - Initialize lazy-connect.
         Stores the secret and VPN list to ~/.config/lazy-connect/