New output feature (#5)

* chore: update badge

ref: badges/shields#8671

* feat: add action output

* build

* docs: update README.md

* chore: update

* build

use npm run package

* chore: update `action.yml` outputs

README.md

@@ -1,6 +1,6 @@
 # 👁 Issues Similarity Analysis
 
-![](https://img.shields.io/github/workflow/status/actions-cool/issues-similarity-analysis/CI?style=flat-square)
+![](https://img.shields.io/github/actions/workflow/status/actions-cool/issues-similarity-analysis/test.yml?branch=main&style=flat-square)
 [![](https://img.shields.io/badge/marketplace-issues--similarity--analysis-blueviolet?style=flat-square)](https://github.com/marketplace/actions/issues-similarity-analysis)
 [![](https://img.shields.io/github/v/release/actions-cool/issues-similarity-analysis?style=flat-square&color=orange)](https://github.com/actions-cool/issues-similarity-analysis/releases)
 
@@ -48,6 +48,20 @@ jobs:
   - The filter issues sort by threshold desc
   - Support `${index}` `${number}` `${title}` `${similarity}`
 
+The return format is as follows:
+
+```js
+  "similar-issues": [
+    { "number": 6, "title": "bug 2", "similarity": 1 },
+    { "number": 10, "title": "bug", "similarity": 0.85 },
+    { "number": 8, "title": "bug", "similarity": 0.85 }
+  ],
+  "similar-issues-found": "true",
+  "similar-issues-number": "6,10,8"
+```
+
+- Return `similar-issues-found`, due to yml reasons, the judgment condition is `if: steps.step-id.outputs.similar-issues-found =='true'`
+
 ## ⚡ Feedback
 
 You are very welcome to try it out and put forward your comments. You can use the following methods:

action.yml

@@ -37,6 +37,14 @@ inputs:
   show-footer:
     description: Whether show footer.
 
+outputs:
+  similar-issues-found:
+    description: Whether similar issues found.
+  similar-issues:
+    description: Similar issues Summary.
+  similar-issues-number:
+    description: Similar issues Number.
+
 runs:
   using: 'node12'
   main: 'dist/index.js'