Update lib/msal-browser/docs/accounts.md
Update lib/msal-browser/docs/accounts.md

Co-authored-by: Thomas Norling <1a051788e095abbaf685fc30243603e8bcd29775@microsoft.com>
AzureAD/microsoft-authentication-library-for-js,AzureAD/microsoft-authentication-library-for-js,AzureAD/microsoft-authentication-library-for-js,AzureAD/microsoft-authentication-library-for-js,AzureAD/microsoft-authentication-library-for-js,AzureAD/microsoft-authentication-library-for-js,AzureAD/microsoft-authentication-library-for-js,AzureAD/microsoft-authentication-library-for-js