improve translations

pd/nw/locales/en/translation.json

@@ -369,9 +369,9 @@
       "api": "midi api",
       "api_tt": "midi backend or server used to communicate with midi devices",
       "alsa_in_ports": "input ports",
-      "alsa_in_ports_tt": "number of input ports for Pd",
+      "alsa_in_ports_tt": "maximum number of incoming midi port connections",
       "alsa_out_ports": "output ports",
-      "alsa_out_ports_tt": "number of output ports for Pd",
+      "alsa_out_ports_tt": "maximum number of outgoing midi ports from Pd",
       "input_title": "Input Devices",
       "input_title_tt": "hardware devices used to get midi data into Pd",
       "output_title": "Output Devices",