docs: Document PR replay feature in getting started guide (#159)

* Document PR replay feature in getting started guide

* Apply suggestion from @prithvi2206

* Apply suggestion from @prithvi2206

---------

Co-authored-by: promptless[bot] <179508745+promptless[bot]@users.noreply.github.com>
Co-authored-by: Prithvi Ramakrishnan <prithvi2206@gmail.com>

Author: promptless[bot]

fern/docs/getting-started.mdx

@@ -68,6 +68,10 @@ Need both trigger types? Create separate projects with identical settings for ea
   Automatically create PRs with documentation changes (GitHub/Bitbucket only)
 </ParamField>
 
+<ParamField path="Process Recent PRs" type="boolean">
+  Analyze PRs from the last 30 days when creating your project to generate suggestions based on recent code changes
+</ParamField>
+
 <Frame>
   <img src="https://promptless-customer-doc-assets.s3.amazonaws.com/docs-images/org_2lvkgU9erOFxYhtEVVC0ymPrPdF/80863009-2671-4d86-91d6-95633becce22-new-project-modal-updated.png" alt="Create New Project modal" />
 </Frame>