Add rancher installation docs

Author: smcintyre-r7

documentation/modules/auxiliary/gather/rancher_authenticated_api_cred_exposure.md

@@ -10,7 +10,42 @@ version of those sensitive data.
 
 ### Install
 
-https://github.com/fe-ax/tf-cve-2021-36782
+* Clone the repository from: https://github.com/fe-ax/tf-cve-2021-36782
+* Create a Digital Ocean API Token
+    * Log into Digital Ocean and navigate to: API > Tokens
+    * Select "Generate New Token"
+    * Enter a token name and then select either Full Access or Custom Scopes
+        * If selecting Custom Scopes, use the values provided below
+* Back in the `tf-cve-2021-36782`, copy the `example.tfvars` file to `yourown.tfvars`
+* Edit `yourown.tfvars` and add the newly generated DO API token as `do_token`
+    * Optionally set the region for the clusters to one closer to you (e.g. `nyc3`)
+* Run `terraform init`
+* Run `terraform apply -var-file yourown.tfvars`, this can take about 20 minutes to run
+* Take the hostname from the `rancher_admin_url` output from terraform and use that as the `RHOST` value for the module
+* Take the password from the `rancher_password` file and use that with the username "admin" for the module
+
+#### Digital Ocean API Token Custom Scopes
+It's possible that there are unnecessary privileges contained within the following settings, however it does permit the
+test environment to start without a full access token.
+
+* Fully Scoped Access:
+    * 1click (2): create, read
+    * account (1): read
+    * actions (1): read
+    * billing (1): read
+    * kubernetes (5): create, read, update, delete, access_cluster
+    * load_balancer (4): create, read, update, delete
+    * monitoring (4): create, read, update, delete
+    * project (4): create, read, update, delete
+    * regions (1): read
+    * registry (4): create, read, update, delete
+    * sizes (1): read
+* Create Access:
+    * app / droplet / firewall / ssh_key
+* Read Access:
+    * app / block_storage / block_storage_action / block_storage_snapshot / cdn / certificate / database / domain / droplet / firewall / function / image / reserved_ip / snapshot / ssh_key / tag / uptime / vpc
+* Update Access:
+    * ssh_key
 
 ## Verification Steps
 
@@ -80,4 +115,4 @@ msf6 auxiliary(gather/rancher_authenticated_api_cred_exposure) > run
 [*] Auxiliary module execution completed
 ```
 
-The [Cluster.Status.ServiceAccountToken](https://jwt.io/#debugger-io?token=eyJhbGciOiJSUzI1NiIsImtpZCI6IndsUHhqR1pxX1dSbkFwVG92SFZ1RWV5WDNjbktDTmhZRVUtOFhWY2gyQ0kifQ.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.URiTKnslommru1NDTq-ClcSc9DBsQwr4_eqSCfksoIeGACwYKK3kPCxe0aVixOkWK9saFTcR46bEz7Of4BfMjUShBl89zSmaGHmlNvYd2sLssWMXbcQInC4Y7Ckti49VbBFoU5EWe-LBSiNrhZcNL6NTn00PgMlIT7OFiSugg8ar7k6Q1Suak0pW_ea1Z56bHGWD-WJM8GsYxohXX7HwYh8cyfOSd_jH6HTZ-p6qsZcWAHnREuzNwcdXqycDVxTA48XEZlfLOJDgvbyhNPssedf3os1rcWTQ5vh_NzUjyqpb8PzQOWm427XjMzBQxwSJVyu1a2TYlNXsLX9qCARjng) is actually a JWT token as seen in the link.
+The [Cluster.Status.ServiceAccountToken](https://jwt.io/#debugger-io?token=eyJhbGciOiJSUzI1NiIsImtpZCI6IndsUHhqR1pxX1dSbkFwVG92SFZ1RWV5WDNjbktDTmhZRVUtOFhWY2gyQ0kifQ.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.URiTKnslommru1NDTq-ClcSc9DBsQwr4_eqSCfksoIeGACwYKK3kPCxe0aVixOkWK9saFTcR46bEz7Of4BfMjUShBl89zSmaGHmlNvYd2sLssWMXbcQInC4Y7Ckti49VbBFoU5EWe-LBSiNrhZcNL6NTn00PgMlIT7OFiSugg8ar7k6Q1Suak0pW_ea1Z56bHGWD-WJM8GsYxohXX7HwYh8cyfOSd_jH6HTZ-p6qsZcWAHnREuzNwcdXqycDVxTA48XEZlfLOJDgvbyhNPssedf3os1rcWTQ5vh_NzUjyqpb8PzQOWm427XjMzBQxwSJVyu1a2TYlNXsLX9qCARjng) is actually a JWT token as seen in the link.

modules/auxiliary/gather/rancher_authenticated_api_cred_exposure.rb

@@ -113,15 +113,15 @@ def login
   end
 
   def check
-    return Exploit::CheckCode::Unknown("#{peer} - Could not connect to web service, or doesnt seem to be a rancher website") unless rancher?
+    return Exploit::CheckCode::Unknown("#{peer} - Could not connect to web service, or does not seem to be a rancher website") unless rancher?
 
     Exploit::CheckCode::Detected('Seems to be rancher, but unable to determine version')
   end
 
   def run
     vprint_status('Attempting login')
     login
-    vprint_good('login successful, querying APIs')
+    vprint_good('Login successful, querying APIs')
     [
       '/v1/management.cattle.io.catalogs',
       '/v1/management.cattle.io.clusters',