add README

Author: smolkaj

README.md

@@ -0,0 +1,25 @@
+# ocaml-python: Using Python scripts from OCaml
+
+This is a minimal skeleton demonstrating how to invoke Python scripts from OCaml. 
+
+## Build & Run
+Simply execute `make test` to build, install, and run. Or, if you prefer to do things step by step:
+1. `make build` to build the package
+2. `make install` to install the package using `opam`, OCaml's package manager
+3. `ocaml-python` to execute the OCaml binary
+To uninstall, execute `make uninstall`.
+
+## Dependencies
+At a minimum, the package requires:
+* **OCaml**, version 4.05.0 or newer
+* **Python 3**, to run the Python script
+* **opam**, OCaml's package manager
+* **jbuilder**, an OCaml build tool
+
+Additionally, the following OCaml packages must be installed through `opam`:
+* **ocamlfind**, to locate the Python script at runtime
+* **core**, Jane Street's de facto standard library for OCaml
+With `opam` installed, acquiring these packages is as easy as excecuting `opam install ocamlfind core` 
+
+### OS
+The package has been tested with Ubuntu and MacOS and should work on all Unix systems.

ocaml-python.opam

@@ -11,7 +11,7 @@ build-test: ["jbuilder" "runtest" "-p" name "-j" jobs]
 install: ["jbuilder" "install" "-p" name "-j" jobs]
 
 depends: [
-  "jbuilder" {>="1.0+beta13"}
+  "jbuilder" {>="1.0+beta13" & build}
   "core"   {>= "0.9.0"}
   "findlib"
 ]