Updating the CLI doc (#468)

Co-authored-by: shrutiburman <[email protected]>

ARCHITECTURE.md

@@ -8,7 +8,7 @@
 
 ## Technology
 
-Twilio CLI is built with the [oclif](https://oclif.io/) CLI framework for Node.js (v8 or higher) using the [“multi-command”](https://oclif.io/docs/multi) CLI template. 
+Twilio CLI is built with the [oclif (v2)](https://oclif.io/) CLI framework for Node.js (v14 or higher) using the [“multi-command”](https://oclif.io/docs/multi) CLI template. 
 
 The oclif framework [documentation](https://oclif.io/docs/introduction) has a general overview of the framework architecture, so this document will focus on the architecture-specific to the Twilio CLI.
 
@@ -125,7 +125,7 @@ To get access to your Twilio resources, the CLI needs an API key to access it. I
 
 ## Commands and topics
 
-The Twilio CLI is a [“multi-command”](https://oclif.io/docs/multi) CLI in the same way that “git” is a multi-command CLI. This means you run “twilio <command>” to perform an operation, where <command> can be a single command like “help” or a topic + command combination like “incoming-phone-number:list”. Note the topic and command are separated by a colon (this may also support being separated by a space in [future oclif](https://github.com/oclif/oclif/issues/186) versions).
+The Twilio CLI is a [“multi-command”](https://oclif.io/docs/multi) CLI in the same way that “git” is a multi-command CLI. This means you run “twilio <command>” to perform an operation, where <command> can be a single command like “help” or a topic + command combination like “incoming-phone-number:list”. Note the topic and command can be separated by a colon or a [space](https://github.com/oclif/oclif/issues/186).
 
 Nesting commands under a topic are used to organize commands. The general relationship to the Twilio API Definitions is that a topic will correspond to a resource and the command corresponds to the action.
 
@@ -144,7 +144,7 @@ Commands can have aliases. For example, “login” is an alias for “profile:a
 
 ## Documentation and help
 
-The CLI is self-documenting. All topics, commands, and their possible parameters with a short description of each can be discovered from the CLI itself using the “--help” flag. Topics and commands that correspond directly to resources and actions in API definitions will use the existing documentation present in the definitions. URLs to Twilio docs are present wherever official documentation is available.
+The CLI is self-documenting. All topics, commands, and their possible parameters with a short description of each can be discovered from the CLI itself using the “--help” or "-h" flag. Topics and commands that correspond directly to resources and actions in API definitions will use the existing documentation present in the definitions. URLs to Twilio docs are present wherever official documentation is available.
 
 ![](/assets/images/help.png)