Add cmake /build dir to gitignore (simdjson#800)

pps83 · web-flow · commit 46cf51203256 · 2020-04-26T10:11:16.000-04:00
+ ignore build* top level dirs
diff --git a/.gitignore b/.gitignore
@@ -155,6 +155,7 @@ objs
 /tools/json2json
 /tools/jsonstats
 /tools/minify
+/build*/
 
 # Don't check in generated API docs
 /doc/api
