docs: fix markdown link (#12000)

### What?
<img width="749" alt="image"
src="https://github.com/user-attachments/assets/a9b6243d-2c50-48bc-a1a1-6a163949ec4a"
/>

Link not showing properly.
Check
https://payloadcms.com/docs/getting-started/installation#2-copy-payload-files-into-your-nextjs-app-folder

<img width="714" alt="image"
src="https://github.com/user-attachments/assets/d1c77d5f-ed3a-4b92-94b6-86694ae7668e"
/>

SQLite Adapter could be added to this section
Check
https://payloadcms.com/docs/getting-started/installation#1-install-the-relevant-packages

### Why?
Wrong syntax

### How?
* fix markdown link
* add section for install sqlite adapter

Author: zy1p

docs/getting-started/installation.mdx

@@ -67,6 +67,11 @@ To install a Database Adapter, you can run **one** of the following commands:
   pnpm i @payloadcms/db-postgres
   ```
 
+- To install the [SQLite Adapter](../database/sqlite), run:
+  ```bash
+  pnpm i @payloadcms/db-sqlite
+  ```
+
 <Banner type="success">
   **Note:** New [Database Adapters](/docs/database/overview) are becoming
   available every day. Check the docs for the most up-to-date list of what's
@@ -75,7 +80,7 @@ To install a Database Adapter, you can run **one** of the following commands:
 
 #### 2. Copy Payload files into your Next.js app folder
 
-Payload installs directly in your Next.js `/app` folder, and you'll need to place some files into that folder for Payload to run. You can copy these files from the [Blank Template](<https://github.com/payloadcms/payload/tree/main/templates/blank/src/app/(payload)>) on GitHub. Once you have the required Payload files in place in your `/app` folder, you should have something like this:
+Payload installs directly in your Next.js `/app` folder, and you'll need to place some files into that folder for Payload to run. You can copy these files from the [Blank Template](https://github.com/payloadcms/payload/tree/main/templates/blank/src/app/(payload)) on GitHub. Once you have the required Payload files in place in your `/app` folder, you should have something like this:
 
 ```plaintext
 app/