Fix IPFS localhost issue on some IPv6-enabled systems (#40)

* .gitignore build/, generated/

* Fix IPv6 IPFS localhost issue

Author: Filippo Costa

.gitignore

@@ -1,3 +1,6 @@
+build/
+generated/
+
 # Logs
 logs
 *.log

package.json

@@ -10,7 +10,7 @@
     "codegen": "graph codegen",
     "build": "graph build",
     "deploy": "graph deploy example --ipfs https://api.thegraph.com/ipfs/ --node https://api.thegraph.com/deploy/",
-    "deploy-local": "graph deploy example --ipfs http://localhost:5001 --node http://127.0.0.1:8020"
+    "deploy-local": "graph deploy example --ipfs http://127.0.0.1:5001 --node http://127.0.0.1:8020"
   },
   "devDependencies": {
     "@graphprotocol/graph-cli": "^0.23.2",