fix gazelle runner (#54)

There needs to be some go file in the sources of this package

docs/help/topics/BUILD.bazel

diff --git a/docs/help/topics/BUILD.bazel b/docs/help/topics/BUILD.bazel
index c9fb976..a8f3774 100644
--- a/docs/help/topics/BUILD.bazel
+++ b/docs/help/topics/BUILD.bazel
@@ -13,7 +13,7 @@
 
 go_library(
     name = "topics",
-    srcs = [":bindata"],
+    srcs = [":bindata"],  # keep
     importpath = "aspect.build/cli/docs/help/topics",
     visibility = ["//visibility:public"],
 )

docs/help/topics/doc.go

diff --git a/docs/help/topics/doc.go b/docs/help/topics/doc.go
new file mode 100644
index 0000000..773538a
--- /dev/null
+++ b/docs/help/topics/doc.go
@@ -0,0 +1,2 @@
+// Package topics contains only generated files.
+package topics