Update apache-proxy.md (dotnet#4291)

The example systemd unit file causes an error if copied directly and used as is (which a lot of first time users likely will). Although the example service will run it will cause a systemd error because comments in systemd unit files need to be on a newline. In this case I've moved the comment to the line above. Now when you do `systemctl status kestrel-hellomvc.service` you won't see an error in the output.
Calkines · Sep 14, 2017 · 498047e · 498047e
1 parent 029dd7f
commit 498047e
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/aspnetcore/publishing/apache-proxy.md b/aspnetcore/publishing/apache-proxy.md
@@ -131,7 +131,8 @@ An example service file for our application.
     WorkingDirectory=/var/aspnetcore/hellomvc
     ExecStart=/usr/local/bin/dotnet /var/aspnetcore/hellomvc/hellomvc.dll
     Restart=always
-    RestartSec=10                                          # Restart service after 10 seconds if dotnet service crashes
+    # Restart service after 10 seconds if dotnet service crashes
+    RestartSec=10
     SyslogIdentifier=dotnet-example
     User=apache
     Environment=ASPNETCORE_ENVIRONMENT=Production