Clarify command-line reference docs (#6524)

* Clarify command-line reference docs

* Update page title

* Merge remote-tracking branch 'origin/unstable' into cli-reference

* Update CLI script

Author: michaelsproul

book/src/SUMMARY.md

@@ -54,13 +54,13 @@
   * [Merge Migration](./merge-migration.md)
   * [Late Block Re-orgs](./late-block-re-orgs.md)
   * [Blobs](./advanced-blobs.md)
-* [Built-In Documentation](./help_general.md)
+* [Command Line Reference (CLI)](./help_general.md)
   * [Beacon Node](./help_bn.md)
   * [Validator Client](./help_vc.md)
   * [Validator Manager](./help_vm.md)
     * [Create](./help_vm_create.md)
     * [Import](./help_vm_import.md)
-    * [Move](./help_vm_move.md)  
+    * [Move](./help_vm_move.md)
 * [Contributing](./contributing.md)
   * [Development Environment](./setup.md)
 * [FAQs](./faq.md)

book/src/cli.md

@@ -1,4 +1,4 @@
-# Lighthouse General Commands
+# Lighthouse CLI Reference
 
 ```
 Ethereum 2.0 client by Sigma Prime. Provides a full-featured beacon node, a

book/src/help_general.md

@@ -40,7 +40,7 @@ vm_import=./help_vm_import.md
 vm_move=./help_vm_move.md
 
 # create .md files
-write_to_file "$general_cli" "$general" "Lighthouse General Commands"
+write_to_file "$general_cli" "$general" "Lighthouse CLI Reference"
 write_to_file "$bn_cli" "$bn" "Beacon Node"
 write_to_file "$vc_cli" "$vc" "Validator Client"
 write_to_file "$vm_cli" "$vm" "Validator Manager"