Hyphenate documentation

Hyphenate "two-factor authentication" in documentation.
Add line break before return statements.

src/Identity/Extensions.Core/src/AuthenticatorTokenProvider.cs

@@ -13,14 +13,15 @@ namespace Microsoft.AspNetCore.Identity
     public class AuthenticatorTokenProvider<TUser> : IUserTwoFactorTokenProvider<TUser> where TUser : class
     {
         /// <summary>
-        /// Checks if a two factor authentication token can be generated for the specified <paramref name="user"/>.
+        /// Checks if a two-factor authentication token can be generated for the specified <paramref name="user"/>.
         /// </summary>
         /// <param name="manager">The <see cref="UserManager{TUser}"/> to retrieve the <paramref name="user"/> from.</param>
-        /// <param name="user">The <typeparamref name="TUser"/> to check for the possibility of generating a two factor authentication token.</param>
+        /// <param name="user">The <typeparamref name="TUser"/> to check for the possibility of generating a two-factor authentication token.</param>
         /// <returns>True if the user has an authenticator key set, otherwise false.</returns>
         public async virtual Task<bool> CanGenerateTwoFactorTokenAsync(UserManager<TUser> manager, TUser user)
         {
             var key = await manager.GetAuthenticatorKeyAsync(user);
+
             return !string.IsNullOrWhiteSpace(key);
         }
 
@@ -65,6 +66,7 @@ namespace Microsoft.AspNetCore.Identity
                     return true;
                 }
             }
+
             return false;
         }
    }