Added overview of methods for private transactions (#1731)

Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>

docs/Privacy/How-To/Creating-Sending-Private-Transactions.md

@@ -3,11 +3,34 @@ description: Creating and sending private transactions
 
 # Creating and Sending Private Transactions 
 
-To create and send private transactions use one of: 
+Create and send private transactions using: 
 
-* [web3.js-eea client library](eeajs.md)
+* [web3.js-eea client library](eeajs.md) or [web3j client library](https://github.com/web3j/web3j)
 * [`eea_sendTransaction` with EthSigner](https://docs.ethsigner.pegasys.tech/en/latest/Using-EthSigner/Using-EthSigner/) 
+* [`eea_sendRawTransaction`](../../Reference/Pantheon-API-Methods.md#eea_sendrawtransaction) 
 
 !!! note
     Private transactions either deploy contracts or call contract functions. 
     Ether transfer transactions cannot be private. 
+    
+## Methods for Private Transactions
+
+A private transaction creates a [Privacy Marker Transaction](../Explanation/Private-Transaction-Processing.md) in addition to the private transaction itself. 
+Use [`eth_getTransactionReceipt`](../../Reference/Pantheon-API-Methods.md#eth_gettransactionreceipt) to 
+get the transaction receipt for the Privacy Maker Transaction and [`eea_getTransactionReceipt`](../../Reference/Pantheon-API-Methods.md#eea_gettransactionreceipt) 
+to get the transaction receipt for the private transaction. 
+
+Use [`eth_getTransactionByHash`](../../Reference/Pantheon-API-Methods.md#eth_gettransactionbyhash) to 
+get the Privacy Marker Transaction with the transaction hash returned when submitting the private transaction. 
+Use [`eea_getPrivateTransacton`](../../Reference/Pantheon-API-Methods.md#eea_getprivatetransaction) 
+to get the private transaction with the `input` value from the Privacy Marker Transaction. 
+
+Separate private states are maintained for each [privacy group](../Explanation/Privacy-Overview.md#privacy-groups) so 
+the account nonce for an account is specific to the privacy group. That is, the nonce for account A for
+privacy group ABC is different to the account nonce for account A for privacy group AB. Use 
+[`eea_getTransactionCount`](../../Reference/Pantheon-API-Methods.md#eea_gettransactioncount) to get 
+the account nonce for an account for the specified privacy group. 
+
+!!! note
+    If sending a large number of private transactions, you may need to calculate the nonce for the account 
+    and privacy group outside the client.