docs(examples): add external auth resource server example (closes #658)#1967

MukundaKatta wants to merge 3 commits intomodelcontextprotocol:mainmodelcontextprotocol/typescript-sdk:mainfrom

MukundaKatta:feat/external-auth-resource-server-exampleMukundaKatta/typescript-sdk:feat/external-auth-resource-server-exampleCopy head branch name to clipboard