docs: update README to enhance project description and add tech stack details

Author: yashksaini-coder

README.md

@@ -1,3 +1,26 @@
 [![Keep Backend Active](https://github.com/yashksaini-coder/investo-server/actions/workflows/ping.yml/badge.svg)](https://github.com/yashksaini-coder/investo-server/actions/workflows/ping.yml)
 
-The Web API service to fetch financial query data from users and other different aspects. Used in the **[Investo-glow](https://github.com/yashksaini-coder/investo-glow)** project.
+This repo is the Backend Server for the **[Investo-glow](https://github.com/yashksaini-coder/investo-glow)** project. It is a REST API server built using FastAPI and Agno AI. It is hosted on Render. The server is responsible for handling all the requests from the frontend and processing them. It also interacts with the Agno AI to get the predictions for the stock prices.
+
+
+## Tech Stack
+
+<table>
+    <tr>
+        <td><img src="https://skillicons.dev/icons?i=fastapi" height=24></td>
+        <td>FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.</td>
+    </tr>
+    <tr>
+        <td><img src="https://avatars.githubusercontent.com/u/104874993?s=24&v=4"></td>
+        <td>Agno is a lightweight library for building multi-modal Agents.
+</td>
+    </tr>
+    <tr>
+        <td><img src="https://github.com/user-attachments/assets/d7439975-103a-4251-a341-1758729f0ab6" height=24></td>
+        <td>Render is a cloud provider that makes deploying your code as easy as deploying to localhost. You can deploy anything that runs on a single port.</td>
+    </tr>
+    <tr>
+        <td><img src="https://skillicons.dev/icons?i=docker" height=24></td>
+        <td>Docker is a set of platform as a service products that use OS-level virtualization to deliver software in packages called containers</td>
+    </tr>
+</table>