Documentation fix

[aruseni]

Actually if using the example, a CREATE transaction is consumed, and its ID is used.

Fixes #436

[aruseni]

@codegeschrei Take a look at this file. There are 2 places where it is mentioned that the ID of the asset is the ID of the transaction which was used for creating the asset:

• In Asset Transfer
• In Querying for Transactions

So do you think it is necessary to mention it another time? IMHO keeping things short is always a good idea if it does not interfere with the ease to understand the documentation.

[ttmc]

...keeping things short is always a good idea if it does not interfere with the ease to understand the documentation.

I suppose that's a reasonable reason to remove it.