fixing Readme and adding temp

Author: timheuer

README.md

@@ -7,8 +7,25 @@ Use this action if you need to get a file from a base64-encoded string that you
 ```
 - name: Run Workflow
   id: write_file
-  uses: ./
+  uses: timheuer/base64-to-file@v1
   with:
     fileName: 'myTemporaryFile.txt'
     encodedString: ${{ secrets.SOME_ENCODED_STRING }}
+```
+
+## Using the file in a later step
+The Action has an output variable named filePath that you can use as this file is written to TEMP.  Make sure you ad an `id` to your step when using this Action so that you can easily pull it out of the steps context later.
+
+```
+- name: Run Workflow
+  id: write_file
+  uses: timheuer/base64-to-file@v1
+  with:
+    fileName: 'myTemporaryFile.txt'
+    encodedString: ${{ secrets.SOME_ENCODED_STRING }}
+
+- name: Some other step
+  uses: actions/someaction@master
+  with:
+      filelocation: ${{ steps.write_file.outputs.filePath }}
 ```

dist/index.js

@@ -57,7 +57,7 @@ const core = __webpack_require__(470);
 const fs = __webpack_require__(747);
 
 // get input parameter values from config
-var fileName = core.getInput('fileName');
+var fileName = process.env['TEMP'] + '\\' + core.getInput('fileName');
 var encodedString = core.getInput('encodedString');
 
 // most @actions toolkit packages have async methods

index.js

@@ -2,7 +2,7 @@ const core = require('@actions/core');
 const fs = require('fs');
 
 // get input parameter values from config
-var fileName = core.getInput('fileName');
+var fileName = process.env['TEMP'] + '\\' + core.getInput('fileName');
 var encodedString = core.getInput('encodedString');
 
 // most @actions toolkit packages have async methods