Update contributor information in README.md

Update README.md

[N-2] 09-VectorStore/07-Mongodb (#888)

Update embedding notebooks (#867)

Update README.md (#895)

Update README.md

Update embedding notebooks

[Gitbook] Delete duplicate content (#893)

[Gitbook] Delete duplicate content (#892)

[Gitbook] uploading new contents (#891)

[Gitbook] uploading revised contents (#889)

[Infra] update metadata information

[R] refactor: renamed files and directories (#470)

Merge "vectorstore-renew" branch (#887)

Revert "Delete 02-Prompt/02-FewShotPromptTemplate.ipynb"