add oobabooga tutorial docs

docs/my-website/docs/tutorials/oobabooga.md

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+# Oobabooga Text Web API Tutorial
+
+### Install + Import LiteLLM 
+```python 
+!pip install litellm
+from litellm import completion 
+import os
+```
+
+### Call your oobabooga model
+Remember to set your api_base
+```python
+response = completion(
+  model="oobabooga/WizardCoder-Python-7B-V1.0-GPTQ",
+  messages=[{ "content": "can you write a binary tree traversal preorder","role": "user"}], 
+  api_base="http://localhost:5000",
+  max_tokens=4000
+)
+```
+
+### See your response 
+```python 
+print(response)
+```
+
+Credits to [Shuai Shao](https://www.linkedin.com/in/shuai-sh/), for this tutorial.