diff --git a/LICENSE b/LICENSE.txt
similarity index 100%
rename from LICENSE
rename to LICENSE.txt
diff --git a/jvm-flags.txt b/doc/jvm-flags.txt
similarity index 100%
rename from jvm-flags.txt
rename to doc/jvm-flags.txt
diff --git a/variants.xlsx b/doc/variants.xlsx
similarity index 100%
rename from variants.xlsx
rename to doc/variants.xlsx
diff --git a/submodules/JCTools b/submodules/JCTools
index 74477eaa00d1c9efe693bd86b705f3ee5aa57b67..75998aa20b7ec897ec321c1f94192de888f2dc6e 160000
--- a/submodules/JCTools
+++ b/submodules/JCTools
@@ -1 +1 @@
-Subproject commit 74477eaa00d1c9efe693bd86b705f3ee5aa57b67
+Subproject commit 75998aa20b7ec897ec321c1f94192de888f2dc6e