Add pre and post template options

README.md

@@ -61,6 +61,13 @@ You can provide a [Mustache](https://github.com/janl/mustache.js) template to us
     template: "> {{ excerpt }}\n\n[Read more!]({{ url }})"
 ```
 
+#### `pre_template` (default: ``)
+
+Any additional pre template to use before add the template. This could be used to open table header for instance.
+
+#### `post_template` (default: ``)
+
+Any additional post template to use after add the template.
 
 ### Example RSS feed:
 

action.yml

@@ -10,9 +10,15 @@ inputs:
   max:
     default: 5
     description: The maximum number of RSS feed items to show.
+  pre_template:
+    default: ''
+    description: Any additional text or tag goes here.
   template:
     default: '* [{{ title }}]({{ link }})'
     description: The template to use for each item in the RSS feed. These are joined by a new line.
+  post_template:
+    default: ''
+    description: Any additional text or tag goes here.
   github_token:
     default: ${{ github.token }}
 runs:

src/index.ts

@@ -9,7 +9,9 @@ interface Inputs {
   'feed-url': string
   'readme-section': string
   max: string
+  pre_template: string
   template: string
+  post_template: string
   [key: string]: string
 }
 
@@ -21,13 +23,27 @@ Toolkit.run<Inputs>(async tools => {
     throw new Error('feed.items was not found!')
   }
 
+  let strings: Array<string> = []
+
+  if (tools.inputs.pre_template) {
+    strings.push(tools.inputs.pre_template)
+  }
+
   // Create our new list
   const newString = feed.items
     .slice(0, parseInt(tools.inputs.max, 10)) 
     .map(item => mustache.render(tools.inputs.template, item)).join('\n')
 
+  strings.push(newString)
+
+  if (tools.inputs.post_template) {
+    strings.push(tools.inputs.post_template)
+  }
+
+  const finalString = strings.join('\n')
+
   // Update the section of our README
-  await ReadmeBox.updateSection(newString, {
+  await ReadmeBox.updateSection(finalString, {
     ...tools.context.repo,
     token: tools.token,
     section: tools.inputs['readme-section']