Autofill changelog with release notes (#19)

Author: JordanMartinez

CHANGELOG.md

@@ -12,4 +12,39 @@ Bugfixes:
 
 Other improvements:
 
-## [0.0.0] - 2020-01-01
+## [v5.0.0](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v5.0.0) - 2019-08-14
+
+* The previous `encode` function had a type signature which assumed it would always succeed, but the underlying function used from JavaScript could throw an exception. That exception is now caught and the `encode` function returns a `Maybe String`. To recover the previous implementation when you _know_ the encoding is valid, you can use `unsafePartial` on the `Maybe` result. (@nsaunders)
+* There is now a `decode` function (@nsaunders)
+
+## [v4.0.1](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v4.0.1) - 2018-06-23
+
+- Adds metadata including contributor guidelines
+- Pushes latest release to Pursuit
+
+## [v4.0.0](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v4.0.0) - 2018-05-25
+
+Updates for 0.12
+
+## [v3.0.0](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v3.0.0) - 2017-04-03
+
+- Updated for PureScript 0.11
+
+## [v2.0.0](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v2.0.0) - 2016-10-27
+
+Updates for 2.0 core libraries and psc-0.10.
+
+## [v1.0.0](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v1.0.0) - 2016-06-09
+
+Updates for 1.0 core libraries.
+
+## [v0.3.1](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v0.3.1) - 2016-02-10
+
+This release uses pre-0.8 import syntax, after purescript-0.8.1 would be released that compatibility would be removed.
+
+## [v0.3.0](https://github.com/purescript-contrib/purescript-form-urlencoded/releases/tag/v0.3.0) - 2016-02-10
+
+Breaking changes:
+- removes `Requestable` instance and dependency on `purescript-affjax`.
+  That instance should be added to `purescript-affjax` in the nearest future.
+