fix: change the address of the ollama document (#1043)

### What problem does this PR solve?

fix: change the address of the ollama document #1042

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/user-setting/setting-model/ollama-modal/index.tsx

         return (
           <Flex justify={'space-between'}>
             <a
-              href={`https://github.com/infiniflow/ragflow/blob/main/docs/${llmFactory.toLowerCase()}.md`}
+              href={`https://github.com/infiniflow/ragflow/blob/main/docs/guides/deploy_local_llm.md`}
               target="_blank"
               rel="noreferrer"
             >