Allow to Add a Move to Top button to enhance the ease of navigation f…

…or README readers. (#636)

Added a Move to Top button to enhance the ease of navigation for README
readers. because of readme file length.

Hi 👋 @creatorrr, Please review my PR and accept my small contribution
and if need any changes please let me know. Thank you
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> [!IMPORTANT]
> Add 'Move to Top' button to README.md for easier navigation.
> 
>   - **README.md**:
> - Adds a 'Move to Top' button at the end of the file for easier
navigation.
> 
> <sup>This description was created by </sup>[<img alt="Ellipsis"
src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=julep-ai%2Fjulep&utm_source=github&utm_medium=referral)<sup>
for 809e5cf. It will automatically
update as commits are pushed.</sup>

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README.md

@@ -1076,3 +1076,11 @@ Explore our comprehensive API documentation to learn more about agents, tasks, a
 - [Agents API](https://api.julep.ai/api/docs#tag/agents)
 - [Tasks API](https://api.julep.ai/api/docs#tag/tasks)
 - [Executions API](https://api.julep.ai/api/docs#tag/executions)
+
+
+  <div align="center">
+    <a href="#top">
+        <img src="https://img.shields.io/badge/Back%20to%20Top-000000?style=for-the-badge&logo=github&logoColor=white" alt="Back to Top">
+    </a>
+</div>
+