Bump version to 7.0.1 (#408)

* Fix broken link in CONTRIBUTING.md

* Bump version to 7.0.1 and update CHANGELOG.md

CHANGELOG.md

@@ -9,6 +9,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 ### Removed
 ### Fixed
+
+## [7.0.1]
+### Added
+- Add CONTRIBUTING.md file.
+### Changed
+- Update Sophia syntax docs to include missing information about existing syntax.
+### Fixed
 - [404](https://github.com/aeternity/aesophia/issues/404) Contract polymorphism crashes on non-obvious child contract typing.
 
 ## [7.0.0]
@@ -354,7 +361,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Simplify calldata creation - instead of passing a compiled contract, simply
   pass a (stubbed) contract string.
 
-[Unreleased]: https://github.com/aeternity/aesophia/compare/v7.0.0...HEAD
+[Unreleased]: https://github.com/aeternity/aesophia/compare/v7.0.1...HEAD
+[7.0.1]: https://github.com/aeternity/aesophia/compare/v7.0.0...v7.0.1
 [7.0.0]: https://github.com/aeternity/aesophia/compare/v6.1.0...v7.0.0
 [6.1.0]: https://github.com/aeternity/aesophia/compare/v6.0.2...v6.1.0
 [6.0.2]: https://github.com/aeternity/aesophia/compare/v6.0.1...v6.0.2

CONTRIBUTING.md

@@ -30,7 +30,7 @@ The following points should be considered before creating a new PR to the Sophia
 - In the [Changelog](CHANGELOG.md):
     - Update the `Unreleased` changes to be under the new version.
     - Update the version at the bottom of the file.
-- Commit and the changes and create a new PR (check the commit of [v6.1.0](5ad5270e381f6e810d7b8b5cdc168d283e7a90bb) for reference).
+- Commit and the changes and create a new PR (check the commit of [v6.1.0](https://github.com/aeternity/aesophia/commit/5ad5270e381f6e810d7b8b5cdc168d283e7a90bb) for reference).
 - Create a release after merging the new PR to `master` branch.
 - After releasing `aesophia`, refer to each of the following repositories and create new releases as well, using the new `aesophia` release:
     - [aesophia_cli](https://github.com/aeternity/aesophia_cli)

rebar.config

@@ -14,7 +14,7 @@
             {base_plt_apps, [erts, kernel, stdlib, crypto, mnesia]}
            ]}.
 
-{relx, [{release, {aesophia, "7.0.0"},
+{relx, [{release, {aesophia, "7.0.1"},
          [aesophia, aebytecode, getopt]},
 
         {dev_mode, true},

src/aesophia.app.src

@@ -1,6 +1,6 @@
 {application, aesophia,
  [{description, "Compiler for Aeternity Sophia language"},
-  {vsn, "7.0.0"},
+  {vsn, "7.0.1"},
   {registered, []},
   {applications,
    [kernel,