feat: Prepare readme template

_README_TEMPLATE.md

@@ -0,0 +1,69 @@
+<!-- Name your function -->
+# ⚡ Template Function
+
+<!-- Write short function tagline -->
+Function with missing description.
+
+## 🧰 Usage
+
+<!-- Copy section for each endpoint -->
+<!-- Document endpoint method and url  -->
+### `GET /`
+
+<!-- Describe the endpoint -->
+Endpoint with missing description.
+
+**Parameters**
+<!-- Document each expected parameter -->
+| Name   | Description                     | Location                     | Type                               | Sample Value |
+|--------|---------------------------------|------------------------------|------------------------------------|--------------|
+| userId | Param with missing description. | Path / Query / Body / Header | String / Number / Boolean / Object | 642...7cd    |
+
+**Response**
+
+<!-- Provide sample body for successful response -->
+
+Sample `200` Response:
+
+```json
+{ "ok": true }
+```
+
+<!-- If relevant, document error responses -->
+
+Sample `400` Response:
+
+```json
+{ "ok": false, "message": "Missing userId parameter." }
+```
+
+## ⚙️ Configuration
+
+<!-- Update values and remove irelevant settings -->
+| Setting        | Value          |
+|----------------|----------------|
+| Runtime        | Node (18.0)    |
+| Entrypoint     | src/main.js    |
+| Build Commands | npm run build  |
+| Permissions    | any            |
+| Events         | users.*.create |
+| CRON           | 0 * * * *      |
+| Timeout        | 15 (Seconds)   |
+
+## 🔒 Environment Variables
+
+<!-- Copy section for each variable -->
+<!-- Name the variable -->
+### APPWRITE_API_KEY
+
+<!-- Describe the variable -->
+API Key to talk to Appwrite backend APIs. 
+
+<!-- Mark if variable is required or not -->
+<!-- Provide sample (but invalid) value -->
+<!-- Link to docs or remove if irelevant -->
+| Question       | Answer          |
+|----------------|-----------------|
+| Required       | Yes / No        |
+| Sample Value   | `d1efb...aec35` |
+| Documentation  | [Appwrite: Getting Started for Server](https://appwrite.io/docs/getting-started-for-server#apiKey) |