Update 'Start train session diagramm'

Start-train-session-diagramm.md

@@ -1,23 +1,29 @@
 ```plantuml
 @startuml
 start
+
 fork
-  :find periferals;
+  :find peripherals;
 fork again
   :get previous connected sensors state;
-end merge
-if(have some previously connected sensors) then (yes)
+end fork
+
+if (have some previously connected sensors?) then (yes)
   :connect saved;
 else (no)
   :connect closest;
 endif
-if(all sensors connected) then (yes)
-  label connect
-  :can load workout;
-else (no)
+
+while (all sensors connected?) is (no)
   :add manually;
-  goto connect
-endif
+  if (have some previously connected sensors?) then (yes)
+    :connect saved;
+  else (no)
+    :connect closest;
+  endif
+endwhile
+
+:can load workout;
 stop
 @enduml
 ```