Add version flag

README.md

@@ -87,3 +87,9 @@ Update to the latest release
 ```bash
 $ wt update
 ```
+
+Show the CLI version
+
+```bash
+$ wt version
+```

wt

@@ -4,7 +4,7 @@ set -e
 # Switch between git worktrees with ease.
 
 args=("$@")
-VERSION="0.0.7"
+VERSION="0.0.8"
 TMP_PATH=$(mktemp)
 BINARY_PATH=$(which wt)
 JQ_URL="https://stedolan.github.io/jq/download"
@@ -22,6 +22,7 @@ help_message() {
 	echo -e "\twt <worktree-name>: search for worktree names and change to that directory."
 	echo -e "\twt list: list out all the git worktrees."
 	echo -e "\twt update: update to the latest release of worktree switcher."
+	echo -e "\twt version: show the CLI version."
 	echo -e "\twt help: shows this help message."
 }
 
@@ -86,6 +87,9 @@ update)
 help)
 	help_message
 	;;
+version)
+	echo Version: $VERSION
+	;;
 -)
 	goto_main_worktree
 	;;