fix: explicitly add "node" command to create-client script

the command line script for starting the create-client script didn't include the node executable so it was being run as a shell script

Fix #200

package.json

@@ -3,7 +3,7 @@
   "version": "1.15.0",
   "main": "main.js",
   "scripts": {
-    "create-client": "cd ../../.. && ./node_modules/@dadi/api/utils/create-client.js",
+    "create-client": "cd ../../.. && node ./node_modules/@dadi/api/utils/create-client.js",
     "init": "validate-commit-msg",
     "test": "standard 'dadi/**/*.js' && env NODE_ENV=test ./node_modules/.bin/istanbul cover -x **/workspace/** --report cobertura --report text --report html --report lcov ./node_modules/mocha/bin/_mocha test -- --require babel-register",
     "posttest": "./scripts/coverage.js",