add testing resources directory

resources/apps/bitcoind/0.21.1.1/instructions.md

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+# Bitcoin Core
+
+## Getting Started
+
+### Config
+
+Your node is highly configurable. Many settings are considered _advanced_ and should be used with caution. For the vast majority of users and use-cases, we recommend using the defaults. This is where you can change RPC credentials as well. Once configured, you may start your node!
+
+### Syncing
+
+Depending on your Internet bandwidth, your node should take approximately 5-7 days to sync from genesis to present.
+
+### Using a Wallet
+
+Enter your QuickConnect QR code **OR** your raw RPC credentials (both located in `Properties`) into any wallet that supports connecting to a remote node over Tor. For a full list of compatible wallets, see <a href="https://github.com/start9labs/bitcoind-wrapper/blob/master/docs/wallets.md" target="_blank">https://github.com/start9labs/bitcoind-wrapper/blob/master/docs/wallets.md</a>.
+
+## Pruning
+
+Pruning is a process by which your node discards old blocks and transactions after it verifies them. Pruned nodes and archival nodes are both "full nodes" in that they are fully validating - they validate every block and transaction. Archival nodes store the entire blockchain and are useful to people interested in doing general or historical analysis, or being a provider of blockchain data to others (eg. a blockexplorer). 
+
+The target of pruning on your Embassy is configurable and set by default to the minimum of 550MB (0.55 GB!), meaning the resulting blockchain will occupy a negligible amount of storage space. The maximum amount of blockchain data you can retain depends on the storage capacity your device. The config menu will not permit you to select a target that exceeds a certain percentage of your device's available capacity.
+
+For most use cases, we recommend sticking with a very low pruning setting.