doc: Update TTSC cluster names (#1349)

doc/content/the-things-stack/cloud/_index.md

@@ -25,10 +25,10 @@ After starting your {{% tts %}} Cloud subscription, you will receive an email wi
 
 | **Cluster ID** | **Name**        | **Location**      |
 | -------------- | --------------- | ----------------- |
-| `as1`          | Asia 1          | Japan             |
+| `as1`          | Asia 1          | Tokyo, Japan      |
 | `au1`          | Australia 1     | Sydney, Australia |
-| `eu1`          | Europe 1        | Ireland           |
-| `eu2`          | Europe 2        | UK                |
+| `eu1`          | Europe 1        | Dublin, Ireland   |
+| `eu2`          | Europe 2        | London, UK        |
 | `nam1`         | North America 1 | California, USA   |
 
 If you navigate to [this link](https://console.cloud.thethings.industries), you can find out which {{% tts %}} Cloud clusters are recommended for your deployment based on the location of your devices and immediately log into its Console.