Added post installation hints

prooph/pdo-event-store/1.7/post-install.txt

@@ -0,0 +1,5 @@
+<bg=blue;fg=white>                                 </>
+<bg=blue;fg=white> MySql Event Store Configuration </>
+<bg=blue;fg=white>                                 </>
+
+  * Modify your MYSQL_* configuration in <fg=green>.env</>

prooph/service-bus-symfony-bundle/0.6/post-install.txt

@@ -0,0 +1,9 @@
+<bg=blue;fg=white>                           </>
+<bg=blue;fg=white> Service Bus Configuration </>
+<bg=blue;fg=white>                           </>
+
+  * Verify and uncomment the configuration in <comment>%CONFIG_DIR%/packages/prooph_service_bus.yaml</>
+    to register message handlers
+
+  * Dispatch commands by injecting
+    the <comment>Prooph\ServiceBus\CommandBus</comment> service into your controllers