add batch_completions to docs

docs/my-website/docs/completion/batching.md

@@ -0,0 +1,34 @@
+# Batching Completion Calls - batch_completion
+
+Batch Completion allows you to pass a batch of completion() requests to process multiple `messages` in a single API call.
+
+## Example Code
+```python
+import litellm
+import os
+from litellm import batch_completion
+
+os.environ['ANTHROPIC_API_KEY'] = ""
+
+
+responses = batch_completion(
+    model="claude-2",
+    messages = [
+        [
+            {
+                "role": "user",
+                "content": "good morning? "
+            }
+        ],
+        [
+            {
+                "role": "user",
+                "content": "what's the time? "
+            }
+        ]
+    ]
+)
+```
+
+
+In the batch_completion method, you provide a list of `messages` where each sub-list of messages is passed to `litellm.completion()`, allowing you to process multiple prompts efficiently in a single API call.

docs/my-website/sidebars.js

@@ -22,7 +22,14 @@ const sidebars = {
     {
       type: "category",
       label: "Completion()",
-      items: ["completion/input", "completion/output", "completion/model_alias", "completion/reliable_completions", "completion/stream"],
+      items: [
+        "completion/input", 
+        "completion/output", 
+        "completion/model_alias", 
+        "completion/reliable_completions", 
+        "completion/stream", 
+        "completion/batching"
+      ],
     },
     {
       type: "category",