修改非法文件名

[jaredliw]

#9546

文件命名有误，导致无法 git clone 仓库

Cloning into 'gold-miner'...
remote: Enumerating objects: 44713, done.
remote: Counting objects: 100% (287/287), done.
remote: Compressing objects: 100% (191/191), done.
remote: Total 44713 (delta 149), reused 197 (delta 96), pack-reused 44426
Receiving objects: 100% (44713/44713), 78.56 MiB | 14.55 MiB/s, done.
Resolving deltas: 100% (26404/26404), done.
error: invalid path 'article/2023/on-the-unpredictable-nature-of-llm-output-and-type-safety-in-langchain-ts\.md'
fatal: unable to checkout working tree
warning: Clone succeeded, but checkout failed.
You can inspect what was checked out with 'git status'
and retry with 'git restore --source=HEAD :/'