update .gitignore

node_modules/pm2-axon-rpc/example.js

@@ -0,0 +1,16 @@
+
+exports.add = function(a, b, fn){
+  fn(null, a + b);
+};
+
+exports.sub = function(a, b, fn){
+  fn(null, a - b);
+};
+
+exports.uppercase = function(str, fn){
+  fn(null, str.toUpperCase());
+};
+
+exports.lowercase = function(str, fn){
+  fn(null, str.toLowerCase());
+};