doc/faq: fix formatting problems due to missing angle bracket

CL 556915 left a '</code' closing tag instead of '</code>'.

Fixes golang/go#65381

Change-Id: I8f9be9ff863d2908be62b07ba15213e41f1a2534
Reviewed-on: https://go-review.googlesource.com/c/website/+/559501
Reviewed-by: Eli Bendersky <[email protected]>
Reviewed-by: Mauri de Souza Meneguzzo <[email protected]>
Auto-Submit: Dmitri Shuralyov <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>

Author: thepudds

_content/doc/faq.html

@@ -295,7 +295,7 @@ <h3 id="Do_Go_programs_link_with_Cpp_programs">
 The "standard" compiler, part of the Go toolchain supported by the
 Go team at Google, is called <code>gc</code>.
 In addition, there are also a GCC-based compiler (<code>gccgo</code>) and
-an LLVM-based compiler (<code>gollvm</code),
+an LLVM-based compiler (<code>gollvm</code>),
 as well as a growing list of unusual ones serving different purposes,
 sometimes implementing language subsets,
 such as <a href="https://tinygo.org/">TinyGo</a>.