FAQ: New Automation section (#2895)

* FAQ: New Automation section
* Update site/content/faq/what-is-the-best-way-to-automate-zap.md

Signed-off-by: Simon Bennetts <[email protected]>

site/content/faq/how-can-i-set-variables-in-the-automation-framework.md

@@ -0,0 +1,51 @@
+---
+title: "How Can I set Variables in the Automation Framework?"
+type: faq
+category: Automation
+weight: 8
+---
+
+The [Automation Framework](/docs/automate/automation-framework/) supports 
+[variables](/docs/desktop/addons/automation-framework/environment/#variables), which includes environment variables.
+You can use these to set values referenced in your plan from the command line, including secrets such as credentials.
+
+To see this in action download the 
+[ScriptEnvVarAccess.yaml](https://github.com/zaproxy/community-scripts/blob/main/other/af-plans/ScriptEnvVarAccess.yaml)
+plan and store it in your current working directory.
+
+Edit the script and change `PATH` to `MyVar`.
+
+On Linux run:
+```bash
+export MyVar="Test 1 2 3"
+zap.sh -cmd -autorun ScriptEnvVarAccess.yaml
+```
+
+On Windows run:
+```bash
+set MyVar=Test 1 2 3
+zap.bat -cmd -autorun ScriptEnvVarAccess.yaml
+```
+
+You may need to specify the full path to the relevant ZAP script on your computer.
+
+In both cases you shoud see output similar to:
+```bash
+Job script set action = add
+Job script set type = standalone
+Job script set engine = ECMAScript : Graal.js
+Job script set name = print-env-vars.js
+Job script set inline = print(Java.type("java.lang.System").getenv("MyVar"));
+
+Job script set action = run
+Job script set type = standalone
+Job script set name = print-env-vars.js
+Job script started
+Job: script Start action: add
+Job script finished, time taken: 00:00:00
+Job script started
+Job: script Start action: run
+Test 1 2 3
+Job script finished, time taken: 00:00:00
+Automation plan succeeded!
+```

site/content/faq/what-is-the-best-way-to-automate-zap.md

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+---
+title: "What is the Best Way to Automate ZAP?"
+type: faq
+category: Automation
+weight: 8
+---
+
+For most use cases, the best way to automate ZAP is using the 
+[Automation Framework](/docs/automate/automation-framework/).
+
+For a comparison of the different automation options see 
+[Automation Options](/docs/getting-further/automation/automation-options/).