added openai docs (#6088)

Author: saminacodes

apps/portal/src/app/nebula/plugins/openAI/page.mdx

@@ -0,0 +1,40 @@
+# OpenAI
+
+### Chat Completions API
+
+Compatible with OpenAI’s Chat Completion API to process chat history and generate context-aware responses.
+
+```python
+from openai import OpenAI
+
+client = OpenAI(
+	base_url="https://nebula-api.thirdweb.com",
+	api_key="{{THIRDWEB_SECRET_KEY}}",
+)
+chat_completion = client.chat.completions.create(
+	model="t0",
+	messages=[{"role": "user", "content": "Hello Nebula!"}],
+	stream=False,
+    extra_body={ "context": { "wallet_address": "0x..." }}
+)
+
+print(chat_completion)
+```
+
+### Models API
+
+Compatible with OpenAI’s Models API to list out models used. 
+
+```python
+from openai import OpenAI
+
+# https://nebula-api.thirdweb.com/models
+
+client = OpenAI(
+    base_url="https://nebula-api.thirdweb.com/",
+    api_key="",
+)
+
+models = client.models.list()
+print(models)
+```

apps/portal/src/app/nebula/plugins/page.mdx

@@ -2,11 +2,7 @@ import { Callout } from '@doc'
 
 # Plugins
 
+- [OpenAI](/nebula/plugins/openai)
+- [Eliza](/nebula/plugins/eliza)
 
-<Callout variant='info' title='Coming Soon'>
-
-We are actively developing plugins to develop with other frameworks and languages.
-
-If you have a specific request, please [contact us](https://thirdweb.com/contact).
-
- </Callout>
+We are actively adding more integrations, for any specific requests please [contact us](https://thirdweb.com/contact).

apps/portal/src/app/nebula/sidebar.tsx

@@ -110,10 +110,14 @@ export const sidebar: SideBar = {
       ],
     },
     {
-      name: "Plugins",
+      name: "Plugins & Integrations",
       href: "/nebula/plugins",
       icon: <Blocks />,
       links: [
+        {
+          name: "OpenAI",
+          href: "/nebula/plugins/openai",
+        },
         {
           name: "Eliza",
           href: "/nebula/plugins/eliza",