Update the README file with the new templates

Add a section for the contrib and verify folders.
Remove trailing spaces.
Reorder the directory listing alphabetically.

Author: jamillambert

README.md

@@ -3,8 +3,8 @@
 There are two primary purposes of this repository:
 
 1. Provide the [`corepc-types`](https://crates.io/crates/corepc-types) crate for use in production
-   software. 
-   
+   software.
+
 2. Provide tools for integration testing Rust code that interacts with the Bitcoin network.
    Primarily consumers of the [`rust-bitcoin`](https://crates.io/crates/bitcoin) library. And enable
    doing so against multiple versions of Bitcoin Core.
@@ -24,11 +24,13 @@ integration testing.
 
 ## Crate/directory listing
 
-- `types/`: [`corepc-types`](https://crates.io/crates/corepc-types): Rust types returned by the JSON-RPC API of Bitcoin Core.
-- `node/`: [`corepc-node`](https://crates.io/crates/corepc-node): Runs `bitcoind` regtest nodes.
 - `client/`: [`corepc-client`](https://crates.io/crates/corepc-client): A blocking JSON-RPC client used to test `corepc-types`.
+- `contrib/`: Contains scripts including one to run local regtest `bitcoind` nodes using versions specified in the config file. A template config file and bitcoind aliases are in the subdirectory `templates/`
 - `integration_test/`: Integration tests that use `corepc-client` and `corepc-node` to test `corepc-types`.
-- `jsonrpc`: [`jsonrpc`](https://crates.io/crates/jsonrpc): Rudimentary support for sending JSONRPC 2.0 requests and receiving responses.
+- `jsonrpc/`: [`jsonrpc`](https://crates.io/crates/jsonrpc): Rudimentary support for sending JSONRPC 2.0 requests and receiving responses.
+- `node/`: [`corepc-node`](https://crates.io/crates/corepc-node): Runs `bitcoind` regtest nodes.
+- `types/`: [`corepc-types`](https://crates.io/crates/corepc-types): Rust types returned by the JSON-RPC API of Bitcoin Core.
+- `verify/`: Provides a tool to help verify the rest of the repository.
 
 ## Design