[Docs] fix nits

Author: chenglou

Makefile

@@ -1,4 +1,5 @@
 # topkg (https://github.com/dbuenzli/topkg) is a small native packager for your lib
+# http://erratique.ch/software/topkg/doc/Topkg.html#basics
 build:
 	cp pkg/META.in pkg/META
 	ocamlbuild -package topkg pkg/build.native

README.md

@@ -31,10 +31,7 @@ make clean    # clean the compiled artifacts
 A single test file `./src/test.re` is included. Make a simple change to it and
 then run the commands above to see it effect the output.
 
-The built output is in `/_build`.
-
-The binary output will be in the project root directory -- to run it, type
-`./test.byte`!
+The built output is in `_build`. Try running it with `_build/src/test.native`.
 
 ## Developing Your Project
 

pkg/build.ml

@@ -1,4 +1,4 @@
-(* Copyright (c) 2015-present, Facebook, Inc. All rights reserved. *)
+(* http://erratique.ch/software/topkg/doc/Topkg.html#basics *)
 
 open Topkg
 
@@ -10,7 +10,7 @@ let () =
                                   %% of_list files)
   in
   let build = Pkg.build ~cmd () in
-  Pkg.describe "ReasonNativeProject"~build ~change_logs:[] ~licenses:[] ~readmes:[] (fun c ->
+  Pkg.describe "ReasonNativeProject" ~build ~change_logs:[] ~licenses:[] ~readmes:[] (fun c ->
     Ok [
       Pkg.lib "pkg/META";
       Pkg.bin ~auto:true ~dst:"test" "src/test";