Split opam description

Signed-off-by: Jeremie Dimino <[email protected]>

Author: jeremiedimino

base.descr

@@ -0,0 +1,14 @@
+Full standard library replacement for OCaml
+
+Full standard library replacement for OCaml
+
+Base is a complete and portable alternative to the OCaml standard
+library. It provides all standard functionalities one would expect
+from a language standard library. It uses consistent conventions
+across all of its module.
+
+Base aims to be usable in any context. As a result system dependent
+features such as I/O are not offered by Base. They are instead
+provided by companion libraries such as stdio:
+
+  https://github.com/janestreet/stdio

base.opam

@@ -17,19 +17,3 @@ depopts: [
   "base-native-int63"
 ]
 available: [ ocaml-version >= "4.04.1" ]
-descr: "
-Full standard library replacement for OCaml
-
-Full standard library replacement for OCaml
-
-Base is a complete and portable alternative to the OCaml standard
-library. It provides all standard functionalities one would expect
-from a language standard library. It uses consistent conventions
-across all of its module.
-
-Base aims to be usable in any context. As a result system dependent
-features such as I/O are not offered by Base. They are instead
-provided by companion libraries such as stdio:
-
-  https://github.com/janestreet/stdio
-"