add note about older ghc versions

TODO

@@ -1,17 +1,3 @@
-task right now: get a 0.5.0 release
-fixed these
-  https://github.com/JakeWheat/simple-sql-parser/issues/7
-  https://github.com/JakeWheat/simple-sql-parser/issues/8
-  https://github.com/JakeWheat/simple-sql-parser/pull/19
-  https://github.com/JakeWheat/simple-sql-parser/issues/18
-this one is fixed now, need postgres dialect atm
-  https://github.com/JakeWheat/simple-sql-parser/issues/15
-test with different ghcs
-update changelog
-do release
-
-
-
 medium tasks next release
 
 review alters, and think about adding rename versions

changelog

@@ -1,5 +1,5 @@
-0.5.0 (not released yet, updated to commit 8e9b9edd0c293b67197e5679e728653477ecafc6)
-        update to work with ghc 8.6.5
+0.5.0
+        update to work with ghc 8.6.5, also tested with 8.4.4 and 8.2.1
 	rename some of the modules Lexer -> Lex, Parser -> Parse
 	add a separate lexer to simplify code and speed up parsing
 	replace SqlIndent with new tool, SimpleSqlParserTool (amazing

website/index.asciidoc

@@ -25,7 +25,7 @@ likely to change the abstract syntax types considerably.
 Release 0.5.0 is a checkpoint release since there hasn't been a
 release for a while.
 
-Tested with GHC 8.6.5.
+Tested with GHC 8.6.5, 8.4.4 and 8.2.1.
 
 == Links