1020873: Updated the readme file in the TypeScript pdf viewer samples#42

GokulprasathVenkatachalam merged 2 commits into

masterSyncfusionExamples/typescript-pdf-viewer-examples:masterfrom

ES-1020873-UpdateReadmeSyncfusionExamples/typescript-pdf-viewer-examples:ES-1020873-UpdateReadmeCopy head branch name to clipboard