Merge pull request #646 from zmstone/docs-update-readme

docs: update readme to include cmake dependency

Author: zmstone

README.md

@@ -30,7 +30,8 @@ Why "brod"? [http://en.wikipedia.org/wiki/Max_Brod](http://en.wikipedia.org/wiki
 
 ## Building and testing
 
-NOTE: Min Erlang/OTP version 22
+- Min Erlang/OTP version 24
+- CMake 4 which is required to build NIF for [crc32cer](https://github.com/kafka4beam/crc32cer)
 
 ```sh
 make compile

src/brod.app.src

@@ -9,6 +9,6 @@
   {modules,[]},
   {licenses, ["Apache License 2.0"]},
   {links, [{"Github", "https://github.com/kafka4beam/brod"}]},
-  {build_tools, ["rebar3"]},
+  {build_tools, ["rebar3", "cmake"]},
   {files, ["src", "include", "rebar.config", "rebar.config.script",
            "README.md","LICENSE", "NOTICE", "Makefile"]}]}.