Update the yojson_json5.opam file

yojson_json5.opam

@@ -1,6 +1,6 @@
 opam-version: "2.0"
-maintainer: ["nathan@cryptosense.com" "[email protected]"]
-authors: ["Martin Jambon"]
+maintainer: ["danielhilst@gmail.com"]
+authors: ["Daniel Hilst", "Gorm Casper", "Gert Sønderby"]
 homepage: "https://github.com/ocaml-community/yojson"
 bug-reports: "https://github.com/ocaml-community/yojson/issues"
 dev-repo: "git+https://github.com/ocaml-community/yojson.git"
@@ -19,15 +19,9 @@ depends: [
   "alcotest" {with-test & >= "0.8.5"}
 ]
 synopsis:
-  "Yojson is an optimized parsing and printing library for the JSON format"
+  "Yojson_json5 is a parsing and printing library for the JSON5 format"
 description: """
-Yojson is an optimized parsing and printing library for the JSON format.
-
-It addresses a few shortcomings of json-wheel including 2x speedup,
-polymorphic variants and optional syntax for tuples and variants.
-
-ydump is a pretty-printing command-line program provided with the
-yojson package.
-
-The program atdgen can be used to derive OCaml-JSON serializers and
-deserializers from type definitions."""
+Yojson_json5 is a parsing and printing library for the JSON5 format.
+It support parsing JSON5 to Yojson.Basic.t, Yojson.Safe.t and
+Yojson.Raw.t types.
+"""