IIP5: update API result examples

[Thoralf-M]

Updating the results to what we actually get from the node using:

# JSON
curl https://indexer.devnet.iota.cafe \
--header 'content-type: application/json' \
--data '{
    "jsonrpc": "2.0",
    "id": 0,
    "method": "iota_view",
    "params": {
        "functionName": "0x5e7a300e640f645a4030aeb507c7be16909e6fa9711e7ca2d4397bbd967d5c50::auction::get_auction_metadata",
        "typeArgs": [],
        "arguments": [
        "0x31deb8cbd320867089d52c37fed2d443520aac0fc5a957de1f64f9135b83f42b",
        "auc.iota"
        ]
    }
}' | jq .

# GraphQL
curl -X POST https://graphql.devnet.iota.cafe \
     --header 'x-iota-rpc-show-usage: true' \
     --header 'Content-Type: application/json' \
     --data '{
        "query": "query { moveViewCall( functionName: \"0x5e7a300e640f645a4030aeb507c7be16909e6fa9711e7ca2d4397bbd967d5c50::auction::get_auction_metadata\" arguments: [ \"0x31deb8cbd320867089d52c37fed2d443520aac0fc5a957de1f64f9135b83f42b\" \"auc.iota\" ] ) { error results } }"
      }' | jq .