Add FAQ section

Author: astefanutti

README.adoc

@@ -98,6 +98,8 @@ $ npm install decktape
 $ `npm bin`/decktape
 ```
 
+See the <<faq,FAQ>> for troubleshooting / alternatives.
+
 == Usage
 
 [source]
@@ -277,6 +279,20 @@ $ docker cp `docker ps -lq`:slides/slides.pdf .
 $ docker rm `docker ps -lq`
 ----
 
+== FAQ
+
+==== Q: How to install prerequisites on Windows?
+
+Open a Powershell prompt in _Run as administrator_ to install Visual Studio Build Tools and Python 2.7:
+
+```console
+$ npm i -g --production windows-build-tools
+```
+
+==== Q: I'm using Arch Linux, is there an AUR package?
+
+Yes, it is available at https://aur.archlinux.org/packages/nodejs-decktape/.
+
 == Plugin API
 
 {icon-edit}