[docs]updating unlink permission to new how to template

docs/02_cleos/02_how-to-guides/how-to-unlink-permission.md

@@ -1,20 +1,43 @@
-## Goal
+## Overview
+This guide provides instructions to unlink a linked permission to a smart contract action.   
 
-Unlink a linked permission level
+The example uses `cleos` to unlink a custom permission _customp_ which is linked to the _hi_ action deployed to the _scontract_ account.   
 
-## Before you begin
+## Before you Begin
+Make sure you meet the following requirements: 
 
-* Install the currently supported version of `cleos`
+* Install the currently supported version of `cleos.`
+[[info | Note]]
+| `Cleos` is bundled with the EOSIO software. [Installing EOSIO](../../00_install/index.md) will also install the `cleos` and `keosd` comand line tools. 
+* You have an EOSIO account and access to the account's `active` private key.
+* You have created a custom permission and linked it. See [How to Link Permission](how-to-link-permission.md).
 
-* Understand the following:
-  * What is an account
-  * What is permission level
-  * What is an action
+## Command Reference
+See the following reference guides for command line usage and related options:
 
-## Steps
+* [cleos set action permission](../03_command-reference/set/set-action-permission.md) command
+## link Procedure
 
-Remove a linked permission level from an action `transfer` of contract `hodlcontract`
+The following step shows you how to link a permission:
 
-```sh
-cleos set action permission alice hodlcontract transfer NULL
-```
+1. Run the following command to unlink _alices_ account permission _customp_ with the _hi_ action deployed to the _scontract_ account:
+
+```shell
+cleos set action permission alice scontract hi NULL -p alice@active
+```
+
+**Where**
+* `alice` = The name of the account containing the permission to link.
+* `scontract`= The name of the account which owns the smart contract.
+* `hi` = The name of the action to link to a permission. 
+* `NULL` = Sets the permission to NULL.
+* `-p alice@active` = The permission used to authorize linking the _customp_ permission.
+
+**Example Output**
+```shell
+executed transaction: 4eb4cf3aea232d46e0e949bc273c3f0575be5bdba7b61851ab51d927cf74a838  128 bytes  141 us
+#         eosio <= eosio::unlinkauth              {"account":"alice","code":"scontract","type":"hi"}
+```
+
+## Summary
+In conclusion, by following these instructions you are able to unlink a permission to a smart contract action.