This fixes documentation of the following RPCs:
- estimaterawfee (hidden)
- https://bitcoincore.org/en/doc/0.19.0/rpc/wallet/walletprocesspsbt/
- https://bitcoincore.org/en/doc/0.19.0/rpc/rawtransactions/finalizepsbt/
- https://bitcoincore.org/en/doc/0.19.0/rpc/network/getnetworkinfo/
- https://bitcoincore.org/en/doc/0.19.0/rpc/wallet/listsinceblock/
- https://bitcoincore.org/en/doc/0.19.0/rpc/wallet/importmulti/
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