ocamlc: add page (#3516)

pages/common/ocamlc.md

@@ -0,0 +1,12 @@
+# ocamlc
+
+> The OCaml bytecode compiler.
+> Produces executables runnable by the OCaml interpreter.
+
+- Create a binary from a source file:
+
+`ocamlc {{path/to/source_file.ml}}`
+
+- Create a named binary from a source file:
+
+`ocamlc -o {{path/to/binary}} {{path/to/source_file.ml}}`