faq: add section about donations

This is asked often enough that it's worth having a canonical answer.

FAQ.md

@@ -25,6 +25,7 @@
 * [How is ripgrep licensed?](#license)
 * [Can ripgrep replace grep?](#posix4ever)
 * [What does the "rip" in ripgrep mean?](#intentcountsforsomething)
+* [How can I donate to ripgrep or its maintainers?](#donations)
 
 
 <h3 name="config">
@@ -981,3 +982,21 @@ grep](#posix4ever),
 ripgrep is neither actually a "grep killer" nor was it ever intended to be. It
 certainly does eat into some of its use cases, but that's nothing that other
 tools like ack or The Silver Searcher weren't already doing.
+
+
+<h3 name="donations">
+How can I donate to ripgrep or its maintainers?
+</h3>
+
+As of now, you can't. While I believe the various efforts that are being
+undertaken to help fund FOSS are extremely important, they aren't a good fit
+for me. ripgrep is and I hope will remain a project of love that I develop in
+my free time. As such, involving money---even in the form of donations given
+without expectations---would severely change that dynamic for me personally.
+
+Instead, I'd recommend donating to something else that is doing work that you
+find meaningful. If you would like suggestions, then my favorites are:
+
+* [The Internet Archive](https://archive.org/donate/)
+* [Rails Girls](https://railsgirlssummerofcode.org/campaign/)
+* [Wikipedia](https://wikimediafoundation.org/support/)