fix: edit updated messages for "org open" (new --source-file flag)

Author: jshackell-sfdc

messages/open.md

@@ -4,14 +4,13 @@ Open your default scratch org, or another specified org, in a browser.
 
 # description
 
-To open a specific page, specify the portion of the URL after "https://MyDomainName.my.salesforce.com/" as the value for
-the --path flag. For example, specify "--path lightning" to open Lightning Experience, or specify "--path
-/apex/YourPage" to open a Visualforce page.
+To open a specific page, specify the portion of the URL after "https://MyDomainName.my.salesforce.com/" as the value for the --path flag. For example, specify "--path lightning" to open Lightning Experience, or specify "--path /apex/YourPage" to open a Visualforce page.
+
+Use the --source-file to open a Lightning Page from your local project in Lightning App Builder. Lightning page files have the suffix .flexipage-meta.xml, and are stored in the "flexipages" directory.
 
 To generate a URL but not launch it in your browser, specify --url-only.
 
-To open in a specific browser, use the --browser flag. Supported browsers are "chrome", "edge", and "firefox". If you
-don't specify --browser, the org opens in your default browser.
+To open in a specific browser, use the --browser flag. Supported browsers are "chrome", "edge", and "firefox". If you don't specify --browser, the org opens in your default browser.
 
 # examples
 
@@ -23,22 +22,21 @@ don't specify --browser, the org opens in your default browser.
 
   $ <%= config.bin %> <%= command.id %> --target-org MyTestOrg1 --browser firefox
 
-- Display the navigation URL for the Lightning Experience page for your default org, but don't open the page in a
-  browser:
+- Display the navigation URL for the Lightning Experience page for your default org, but don't open the page in a browser:
 
   $ <%= config.bin %> <%= command.id %> --url-only --path lightning
 
-- Open a specific ApexPage or Flexipage in the org using the --source-path flag
+- Open a local Lightning page in your default org's Lightning App Builder:
 
-  $ <%= config.bin %> <%= command.id %> --source-path <path to page>
+  $ <%= config.bin %> <%= command.id %> --source-path force-app/main/default/flexipages/Hello.flexipage-meta.xml
 
 # flags.browser.summary
 
 Browser where the org opens.
 
 # flags.source-file.summary
 
-Path to an ApexPage or FlexiPage to open in the browser.
+Path to an ApexPage or FlexiPage to open in Lightning App Builder.
 
 # flags.path.summary