fix: debug upgrade tests in gh actions (cosmos#2531)

* Fix upgrade test in gh actions

* update testnet link

* fix links

.github/workflows/test.yml

@@ -161,3 +161,4 @@ jobs:
       - name: Check for successful migration
         run: |
           ./contrib/scripts/test_migration.sh localhost
+        if: env.GIT_DIFF

docs/README.md

@@ -25,7 +25,7 @@ Welcome to the documentation of the **Cosmos Hub application: `gaia`**.
 
 ## Setup Your Own `gaia` Testnet
 
-- [Setup your own `gaia` testnet](https://github.com/cosmos/testnets/tree/master/local/previous-local-testnets/theta)
+- [Setup your own `gaia` testnet](https://github.com/cosmos/testnets/tree/master/local/previous-local-testnets/v7-theta)
 
 ## Additional Resources
 

docs/migration/cosmoshub-4-v7-Theta-upgrade.md

@@ -77,7 +77,7 @@ It is critically important for validator operators to back-up the `.gaia/data/pr
 
 ### Testing
 
-For those validator and full node operators that are interested in ensuring preparedness for the impending upgrade, you can join in our [v7-Theta public-testnet](https://github.com/cosmos/testnets/tree/master/v7-theta/public-testnet) or run a [v7-Theta local testnet](https://github.com/cosmos/testnets/tree/master/local/previous-local-testnets/theta).
+For those validator and full node operators that are interested in ensuring preparedness for the impending upgrade, you can join in our [v7-Theta public-testnet](https://github.com/cosmos/testnets/tree/master/v7-theta/public-testnet) or run a [v7-Theta local testnet](https://github.com/cosmos/testnets/tree/master/local/previous-local-testnets/v7-theta).
 
 ### Current runtime, cosmoshub-4 (pre-v7-Theta upgrade) is running Gaia v6.0.x