make json-to-go.js directly executable

Author: grische

README.md

@@ -17,20 +17,20 @@ Contributions are welcome! Open a pull request to fix a bug, or open an issue to
 - Read JSON file:
 
   ```sh
-  node json-to-go.js sample.json
+  ./json-to-go.js sample.json
   ```
 
 - Read JSON file from stdin:
 
   ```sh
-  node json-to-go.js < sample.json
-  cat sample.json | node json-to-go.js
+  ./json-to-go.js < sample.json
+  cat sample.json | ./json-to-go.js
   ```
 
 - For more options, check the help page
 
   ```sh
-  node json-to-go.js --help
+  ./json-to-go.js --help
   ```
 
 ### Credits

json-to-go-v2.js

@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 /*
 	JSON-to-Go v2
 	by Matt Holt
@@ -514,7 +515,7 @@ if (typeof module === 'undefined' || !module.parent) {
 		const scriptname = path.basename(process.argv[1])
 
 		console.log(`\
-Usage: node ${scriptname} [OPTION]... [FILE]
+Usage: ${scriptname} [OPTION]... [FILE]
 Convert json to go file and prints the result on stdout.
 
 Optional arguments:

json-to-go.js

@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 /*
 	JSON-to-Go
 	by Matt Holt