added uninstall script

Author: Raj Nandan Sharma

uninstall.sh

@@ -0,0 +1,15 @@
+# Locate the binary directory
+GOBIN=$(go env GOBIN)
+if [ -z "$GOBIN" ]; then
+  GOBIN=$(go env GOPATH)/bin
+fi
+
+# Remove the okgit binary
+rm "$GOBIN/okgit"
+
+# Verify uninstallation
+if ! command -v okgit &> /dev/null; then
+  echo "okgit successfully uninstalled"
+else
+  echo "Failed to uninstall okgit"
+fi