Update version and changelog (#620)

Remove outdated reference to PimpMyChangelog

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## 2.0.1 [☰](https://github.com/activeadmin/arbre/compare/v2.0.0...v2.0.1)
+
+* Drop dependency on ruby2_keywords. [#578][] by [@Earlopain][]
+* Performance improvements in HTML generation. [#562][], [#617][] by [@tagliala][]
+
 ## 2.0.0 [☰](https://github.com/activeadmin/arbre/compare/v1.7.0...v2.0.0)
 
 * Include empty attributes in HTML output. [#543][] by [@javierjulio][]
@@ -99,7 +104,6 @@ _No changes_.
 
 Initial release and extraction from Active Admin
 
-<!--- The following link definition list is generated by PimpMyChangelog --->
 [#4]: https://github.com/activeadmin/arbre/issues/4
 [#6]: https://github.com/activeadmin/arbre/issues/6
 [#7]: https://github.com/activeadmin/arbre/issues/7
@@ -134,6 +138,9 @@ Initial release and extraction from Active Admin
 [#542]: https://github.com/activeadmin/arbre/pull/542
 [#543]: https://github.com/activeadmin/arbre/pull/543
 [#545]: https://github.com/activeadmin/arbre/pull/545
+[#562]: https://github.com/activeadmin/arbre/pull/562
+[#578]: https://github.com/activeadmin/arbre/pull/578
+[#617]: https://github.com/activeadmin/arbre/pull/617
 
 [@aramvisser]: https://github.com/aramvisser
 [@LTe]: https://github.com/LTe
@@ -157,3 +164,4 @@ Initial release and extraction from Active Admin
 [@ngan]: https://github.com/ngan
 [@tomascco]: https://github.com/tomascco
 [@javierjulio]: https://github.com/javierjulio
+[@Earlopain]: https://github.com/Earlopain

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    arbre (2.0.0)
+    arbre (2.0.1)
       activesupport (>= 3.0.0)
 
 GEM

gemfiles/rails_61/Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    arbre (2.0.0)
+    arbre (2.0.1)
       activesupport (>= 3.0.0)
 
 GEM

gemfiles/rails_70/Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    arbre (2.0.0)
+    arbre (2.0.1)
       activesupport (>= 3.0.0)
 
 GEM

gemfiles/rails_71/Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: ../..
   specs:
-    arbre (2.0.0)
+    arbre (2.0.1)
       activesupport (>= 3.0.0)
 
 GEM

lib/arbre/version.rb

@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 module Arbre
-  VERSION = "2.0.0"
+  VERSION = "2.0.1"
 end