docs(fireworks_ai.md): add fireworks ai to docs

docs/my-website/docs/providers/fireworks_ai.md

@@ -0,0 +1,53 @@
+# Fireworks AI
+https://fireworks.ai/
+
+**We support ALL Fireworks AI models, just set `fireworks_ai/` as a prefix when sending completion requests**
+
+## API Key
+```python
+# env variable
+os.environ['FIREWORKS_AI_API_KEY']
+```
+
+## Sample Usage
+```python
+from litellm import completion
+import os
+
+os.environ['FIREWORKS_AI_API_KEY'] = ""
+response = completion(
+    model="fireworks_ai/mixtral-8x7b-instruct", 
+    messages=[
+       {"role": "user", "content": "hello from litellm"}
+   ],
+)
+print(response)
+```
+
+## Sample Usage - Streaming
+```python
+from litellm import completion
+import os
+
+os.environ['FIREWORKS_AI_API_KEY'] = ""
+response = completion(
+    model="fireworks_ai/mixtral-8x7b-instruct", 
+    messages=[
+       {"role": "user", "content": "hello from litellm"}
+   ],
+    stream=True
+)
+
+for chunk in response:
+    print(chunk)
+```
+
+
+## Supported Models - ALL Fireworks AI Models Supported!
+We support ALL Fireworks AI models, just set `fireworks_ai/` as a prefix when sending completion requests
+
+| Model Name               | Function Call                                                                                                                                                      |
+|--------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| mixtral-8x7b-instruct | `completion(model="fireworks_ai/mixtral-8x7b-instruct", messages)` | 
+| firefunction-v1 | `completion(model="fireworks_ai/firefunction-v1", messages)` |
+| llama-v2-70b-chat | `completion(model="fireworks_ai/llama-v2-70b-chat", messages)` |  

docs/my-website/sidebars.js

@@ -138,6 +138,7 @@ const sidebars = {
         "providers/ollama", 
         "providers/perplexity", 
         "providers/groq", 
+        "providers/fireworks_ai", 
         "providers/vllm", 
         "providers/xinference", 
         "providers/cloudflare_workers",