[ko]: add index.md for `web/glossary/page_load_time`#16188

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pje1740 merged 1 commit intomdn:mainfrom IMHOJEONG:web/glossary/page_load_time

Oct 4, 2023

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Commits on Sep 28, 2023

[add]: add index.md for web/glossary/page_load_time
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