point spice include at library

.gitignore

diff --git a/.gitignore b/.gitignore
index 85c7f15..70529dd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
 */*/tmp
 /comparator/sky130_fd_pr
 /old-comparator/sky130_fd_pr
-*.ext
\ No newline at end of file
+*.ext
+*.out

comparator/simulation.spice

diff --git a/comparator/simulation.spice b/comparator/simulation.spice
index a73d7eb..c579cec 100644
--- a/comparator/simulation.spice
+++ b/comparator/simulation.spice
@@ -1,6 +1,6 @@
 * comparator Simulation
 * this file edited to remove everything not in tt lib
-.lib "./sky130_fd_pr/models/sky130.lib.spice" tt
+.lib "~/open_sky130/sky130_fd_pr/models/sky130.lib.spice" tt
 .include comparator.spice
 .include comparator-preamp.spice
 .include comparator-decision.spice