docs: adapt to Palladium, drop Bitcoin/upstream examples and links

index, features, HOWTO (node requirements, sizes and sync time measured on
Palladium, real startup log, clone URL), environment, peer discovery and
architecture; rpc-interface examples (getinfo, peers, query with real data);
release_process rewritten without tags/PyPI; changelog gets a plm-electrumx
1.0.0 entry above the upstream history. Links point to this repository.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

docs/architecture.rst

@@ -31,13 +31,13 @@ Handles JSON Electrum client connections over TCP or SSL.  One
 instance per client session.  Should be the only component concerned
 with the details of the Electrum wire protocol.
 
-Not started until the Block Processor has caught up with bitcoind.
+Not started until the Block Processor has caught up with palladiumd.
 
 Daemon
 ------
 
-Encapsulates the RPC wire protocol with bitcoind for the whole server.
-Transparently handles temporary bitcoind connection errors, and fails
+Encapsulates the RPC wire protocol with palladiumd for the whole server.
+Transparently handles temporary palladiumd connection errors, and fails
 over if necessary.
 
 Notifies the Mempool when the list of mempool transaction hashes is
@@ -62,14 +62,14 @@ Prefetcher
 ----------
 
 Cooperates with the Block Processor to asynchronously prefetch blocks
-from bitcoind.  Once it has caught up it additionally asks the Daemon
-to refresh its view of bitcoind's mempool transaction hashes.  Serves
+from palladiumd.  Once it has caught up it additionally asks the Daemon
+to refresh its view of palladiumd's mempool transaction hashes.  Serves
 blocks to the Block Processor via a queue.
 
 Mempool
 -------
 
-Handles all the details of maintaining a representation of bitcoind's
+Handles all the details of maintaining a representation of palladiumd's
 mempool state.  Obtains the list of current mempool transaction hashes
 from the Daemon when notified by the Prefetcher.