Repository: huggingface/transformers
Pull request: [doc] fix the code examples in qwen doc

# What does this PR do?
This PR fixes the incorrect variable names of code examples in Qwen model's doc.
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Changed files:
filename: docs/source/en/model_doc/qwen2_5_omni.md
patch: @@ -59,7 +59,7 @@ model = Qwen2_5OmniForConditionalGeneration.from_pretrained(
 )
 processor = Qwen2_5OmniProcessor.from_pretrained("Qwen/Qwen2.5-Omni-7B")
 
-conversation = [
+conversations = [
     {
         "role": "system",
         "content": [
@@ -115,7 +115,7 @@ model = Qwen2_5OmniThinkerForConditionalGeneration.from_pretrained(
 )
 processor = Qwen2_5OmniProcessor.from_pretrained("Qwen/Qwen2.5-Omni-7B")
 
-conversation = [
+conversations = [
     {
         "role": "system",
         "content": [