Merge pull request #10 from andreasabel/add-CHANGELOG-to-cabal-file

Add `CHANGELOG.md` to `Diff.cabal`, fix formatting in `CHANGELOG.md`.   Thanks Andreas.

Author: ddssff

CHANGELOG.md

@@ -1,13 +1,12 @@
 # 0.5
 
-	- Bring space complexity down to D^2 (Bodigrim)
-	- Add Bifunctor instance (Jonathan King.)  Requires base >= 4.8.
-	- Fix for the grouped context diff.  It was omitting all trailing
-	  context.
-	- Allow unlimited number of context elements (getContextDiffNew)
+  - Bring space complexity down to D^2 (Bodigrim).
+  - Add `Bifunctor` instance (Jonathan King).  Requires `base` >= 4.8.
+  - Fix for the grouped context diff.  It was omitting all trailing contexts.
+  - Allow unlimited number of context elements (`getContextDiffNew`).
 
 # 0.4
 
-	- Generalize `Diff a` to `PolyDiff a b`.  `Diff` has been replaced with
-	  a specialized synonym `type Diff a = PolyDiff a a`, but it's still not
-	  backward compatible if you imported `Diff(..)`.
+  - Generalize `Diff a` to `PolyDiff a b`.
+    `Diff` has been replaced with a specialized synonym `type Diff a = PolyDiff a a`,
+    but it's still not backward compatible if you imported `Diff(..)`.

Diff.cabal

@@ -1,3 +1,4 @@
+Cabal-Version:       1.18
 name:                Diff
 version:             0.5
 synopsis:            Diff algorithm in pure Haskell
@@ -15,7 +16,8 @@ Tested-With:         GHC == 7.10.3, GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4, GH
                      GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.2, GHC == 9.2.8, GHC == 9.4.7,
                      GHC == 9.6.3, GHC == 9.8.1
 Build-Type:          Simple
-Cabal-Version:       >= 1.10
+
+extra-doc-files:     CHANGELOG.md
 
 library
   default-language: Haskell2010