Fix typos in samples

samples/C4_Container Diagram Sample - bigbankplc.puml

@@ -15,7 +15,7 @@ System_Boundary(c1, "Internet Banking") {
     Container(web_app, "Web Application", "Java, Spring MVC", "Delivers the static content and the Internet banking SPA")
     Container(spa, "Single-Page App", "JavaScript, Angular", "Provides all the Internet banking functionality to cutomers via their web browser")
     Container(mobile_app, "Mobile App", "C#, Xamarin", "Provides a limited subset of the Internet banking functionality to customers via their mobile device")
-    ContainerDb(database, "Database", "SQL Database", "Stores user registraion information, hased auth credentials, access logs, etc.")
+    ContainerDb(database, "Database", "SQL Database", "Stores user registration information, hashed auth credentials, access logs, etc.")
     Container(backend_api, "API Application", "Java, Docker Container", "Provides Internet banking functionality via API")
 }
 
@@ -34,4 +34,4 @@ Rel_Back_Neighbor(database, backend_api, "Reads from and writes to", "sync, JDBC
 Rel_Back(customer, email_system, "Sends e-mails to")
 Rel_Back(email_system, backend_api, "Sends e-mails using", "sync, SMTP")
 Rel_Neighbor(backend_api, banking_system, "Uses", "sync/async, XML/HTTPS")
-@enduml
+@enduml