Fix DeleteContractRegistryAction inputs/outputs
Corrected the Sabre Transaction Family documentation:
sawtooth.swa.administrators is an input (not output).
@@ -417,11 +417,11 @@ The contract registry is deleted.
The inputs for DeleteContractRegistryAction must include:
* the address for the contract registry
+* the settings address for ``sawtooth.swa.administrators``
The outputs for DeleteContractRegistryAction must include:
* the address for the contract registry
-* the settings address for ``sawtooth.swa.administrators``
UpdateContractRegistryOwnersAction
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