diff --git a/.hgignore b/.hgignore
new file mode 100644
index 0000000..e01393f
--- /dev/null
+++ b/.hgignore
@@ -0,0 +1,4 @@
+syntax: glob
+*.aux
+*.idx
+*.log
diff --git a/GPS/GTHurl.pdf b/GPS/GTHurl.pdf
new file mode 100644
index 0000000..65dc729
--- /dev/null
+++ b/GPS/GTHurl.pdf
Binary files differ