Create README.md

Author: shivamvish160

Server-Side Components/Script Includes/Recursive GlideRecord Fetcher/README.md

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+#  Recursive GlideRecord Fetcher
+##  Overview
+This snippet provides a reusable logic to recursively fetch child records from a parent record in ServiceNow. It is useful for traversing hierarchical relationships such as tasks, categories, CMDB CI relationships, or any table with a parent-child structure.
+
+The logic prevents infinite loops by tracking visited records and supports nesting of children for structured output.
+
+---
+
+##  Use Case
+- Fetch all subtasks under a parent task.
+- Traverse CMDB CI relationships recursively.
+- Build hierarchical views of organizational units or categories.
+
+---
+
+##  Parameters
+| Parameter        | Description                                                                 |
+|------------------|-----------------------------------------------------------------------------|
+| `tableName`      | Name of the table to query (e.g., `task`, `cmdb_ci`, `custom_table`)        |
+| `parentField`    | Field that links to the parent record (e.g., `parent`, `parent_id`)         |
+| `parentSysId`    | Sys ID of the root parent record to start traversal                         |
+
+---
+
+##  Example Usage
+```javascript
+var fetcher = new RecursiveFetcher('task', 'parent');
+var hierarchy = fetcher.fetchChildren('abc123sysid'); // Replace with actual parent sys_id
+gs.info(JSON.stringify(hierarchy));