[docs] cleos doc-a-thon feedback

docs/02_cleos/02_how-to-guides/how-to-create-key-pairs.md

@@ -1,22 +1,50 @@
 ## Goal
+Create a keypair consisting of a public and a private key for signing transactions in the EOSIO blockchain.
 
 ## Before you begin
+Before you follow the steps to create a new key pair, make sure the following items are fulfilled:
+
 
 * Install the currently supported version of `cleos`
 
-* Understand the following:
-  * What is a public and private key pair
+[[info | Note]]
+| The cleos tool is bundled with the EOSIO software. [Installing EOSIO](../../00_install/index.md) will also install the cleos tool. 
+
+* Acquire functional understanding of asymmetric cryptography (public and private keypair) in the context of blockchain
 
 ## Steps
 
-To output the key pair to the console
+To create a keypair and print the result to the console:
+
+```sh
+cleos create key --to-console
+```
+
+**Example Output**
 
 ```sh
 cleos create key --to-console
+Private key: 5KPzrqNMJdr6AX6abKg*******************************cH
+Public key: EOS4wSiQ2jbYGrqiiKCm8oWR88NYoqnmK4nNL1RCtSQeSFkGtqsNc
 ```
 
-To save the key pair to file
+
+To create a keypair and save it to a file:
 
 ```sh
 cleos create key --file FILE_TO_SAVEKEY
-```
+```
+Where: FILE_TO_SAVEKEY = name of the file
+
+**Example Output**
+```sh
+cleos create key --file pw.txt         
+saving keys to pw.txt
+```
+
+To view the saved keypair in the file:
+```sh
+cat pw.txt
+Private key: 5K7************************************************
+Public key: EOS71k3WdpLDeqeyqVRAAxwpz6TqXwDo9Brik5dQhdvvpeTKdNT59
+```