Updated .pkgmeta for changelog for curse

diff --git a/ElvUI_SLE/.pkgmeta b/ElvUI_SLE/.pkgmeta
index 2f43c33..a7176c2 100644
--- a/ElvUI_SLE/.pkgmeta
+++ b/ElvUI_SLE/.pkgmeta
@@ -1 +1,4 @@
-package-as: ElvUI_SLE
\ No newline at end of file
+package-as: ElvUI_SLE
+manual-changelog:
+    filename: CHANGELOG.txt
+    markup-type: bbcode
\ No newline at end of file