Add MSAL Angular docs#21

Dickson-Mwendia merged 1 commit intoMicrosoftDocs:msal-angular-docsMicrosoftDocs/microsoft-authentication-library-javascript:msal-angular-docsfrom

Dickson-Mwendia:msal-angular-docsDickson-Mwendia/microsoft-authentication-library-javascript:msal-angular-docsCopy head branch name to clipboard