Added migration guide

docs/mint.json

@@ -100,6 +100,7 @@
       "group": "Self-host agenta",
       "pages": [
         "self-host/host-locally",
+        "self-host/migration",
         {
           "group": "Deploy Remotely",
           "pages": [

docs/self-host/migration.mdx

@@ -0,0 +1,50 @@
+---
+title: Migration
+description: 'This is a step-by-step guide for upgrading to the latest version of Agenta'
+---
+
+## Upgrading to the Latest Version
+
+To upgrade to the latest version of Agenta, execute the following command:
+
+```
+docker compose -f docker-compose.gh.yml up -d --pull always
+
+```
+
+This command instructs Docker to fetch and use the latest version of the Agenta image.
+
+## Database Migration with Beanie
+
+This guide offers detailed steps for performing database migrations in the Agenta backend system, using Beanie, a MongoDB ODM (Object Document Mapper) for Python. You can learn more about Beanie [here](https://github.com/roman-right/beanie).
+
+### Setting Up Beanie
+
+To install a custom version of Beanie:
+
+```
+git clone <https://github.com/mmabrouk/beanie>
+cd beanie
+pip install .
+
+```
+
+### Migrating from Version 0.7 to 0.8
+
+1. **Accessing the Migration Directory**: First, navigate to the migration directory:
+
+    ```
+    cd agenta_backend/migrations/17_01_24_pydantic_and_evaluations
+    
+    ```
+
+2. **Executing the Beanie Migration**: Run the migration script as follows:
+
+    ```
+    beanie migrate --no-use-transaction -uri 'mongodb://username:password@localhost' -db 'agenta_v2' -p .
+    
+    ```
+
+    <Warning>
+    Make sure to replace `username`, `password`, and other relevant placeholders with your actual credentials, unless you're using default settings.
+    </Warning>