document printing individual component version (#3339)

Co-authored-by: Jennifer Shehane <[email protected]>

source/guides/guides/command-line.md

@@ -554,7 +554,7 @@ cypress verify
 
 ## `cypress version`
 
-Prints the installed Cypress binary version, the Cypress package version, the version of Electron used to build Cypress, and the bundled Node version. 
+Prints the installed Cypress binary version, the Cypress package version, the version of Electron used to build Cypress, and the bundled Node version.
 
 In most cases the binary and the package versions will be the same, but they could be different if you have installed a different version of the package and for some reason failed to install the matching binary version.
 
@@ -566,6 +566,19 @@ Electron version: 10.1.5
 Bundled Node version: 12.14.1
 ```
 
+You can print each individual component's version number also.
+
+```shell
+cypress version --component package
+6.0.0
+cypress version --component binary
+6.0.0
+cypress version --component electron
+10.1.5
+cypress version --component node
+12.14.1
+```
+
 ## `cypress cache [command]`
 
 Commands for managing the global Cypress cache. The Cypress cache applies to all installs of Cypress across your machine, global or not.