add link to FileCheck docs

RalfJung · RalfJung · commit 633f67ad7417 · 2019-08-26T20:40:30.000+02:00
diff --git a/src/test/codegen/README.md b/src/test/codegen/README.md
@@ -0,0 +1,2 @@
+The files here use the LLVM FileCheck framework, documented at
+<https://llvm.org/docs/CommandGuide/FileCheck.html>.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+The files here use the LLVM FileCheck framework, documented at`
	`2`	`+<https://llvm.org/docs/CommandGuide/FileCheck.html>.`