Ignore package-lock.json because Yarn is sometimes annoying

jakezatecky · jakezatecky · commit 57ec0336e25a · 2018-07-29T18:10:14.000-04:00
diff --git a/.gitignore b/.gitignore
@@ -1,3 +1,4 @@
 /lib
 /node_modules
+package-lock.json
 yarn.lock
