diff --git a/.gitignore b/.gitignore
index 5795603..1a934ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,10 @@
-*.class
-*.ctxt
-*.sh
+**/*.class
+**/*.ctxt
+**/*.sh
 repo.adoc
+repo_subtree.adoc
 *.~lock
 /alt
+/hide
 Gemfile
 Gemfile.lock
diff --git a/readme.pdf b/readme.pdf
index 00db63b..300cc67 100644
Binary files a/readme.pdf and b/readme.pdf differ