update compilation readme, increase ssh timeout in play

_/ansible/README.md

@@ -8,14 +8,12 @@ The whole process usually takes around 1 hour to on a `c6a.12xlarge` instance.
 
 ## Chromium Version
 
-To compile a specific version of Chromium, update the `puppeteer_version` variable in the Ansible inventory, i.e.:
+To compile a specific version of Chromium, update the `chromium_revision` variable in the Ansible inventory, i.e.:
 
 ```shell
-puppeteer_version=v1.9.0
+chromium_revision=1056772
 ```
 
-If not specified, the current `main` will be used.
-
 ## Usage
 
 ```shell

_/ansible/plays/chromium.yml

@@ -71,7 +71,7 @@
       wait_for:
         host: "{{ ec2.instances[0].public_ip_address }}"
         port: 22
-        timeout: 120
+        timeout: 240
         state: started
 
 - name: AWS