fix(index.js): fix placeholder replacement

Author: rishichawda

example/README.md

@@ -1,3 +1,4 @@
 <!-- AUTO-GENERATED-CONTENT:START (travisBadgePlugin:src=./example-template&addNewLine=false) -->
 [![Travis (.org)](https://img.shields.io/travis/user/repo/master.svg)](https://travis-ci.org/user/repo)
+[![Travis (.org)](https://img.shields.io/travis/user/repo/master.svg)](https://travis-ci.org/user/repo)
 <!-- AUTO-GENERATED-CONTENT:END -->

example/example-template

@@ -1 +1,2 @@
+[![Travis (.org)](https://img.shields.io/travis/user/repo/{current_branch}.svg)](https://travis-ci.org/user/repo)
 [![Travis (.org)](https://img.shields.io/travis/user/repo/{current_branch}.svg)](https://travis-ci.org/user/repo)

index.js

@@ -42,7 +42,7 @@ function applyTransform(data) {
      return appendSlash ? `/${branch}` : branch;
   }
 
-  return data.replace("{current_branch}", branch ? handleSlash() : "");
+  return data.split("{current_branch}").join(branch ? handleSlash() : "");
 }
 
 module.exports = function travisBadgePlugin(content, pluginOptions, config) {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "markdown-magic-branch-badge",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "A plugin to keep badges updated with branch.",
   "main": "index.js",
   "scripts": {