[doc] How to build search.json

Author: amenk

DEVELOPMENT.md

@@ -6,6 +6,6 @@ Warning: BBOX Params are flipped!
 git clone https://github.com/trufi-association/osm-search-data-export.git
 cd osm-search-data-export
 docker build . --tag osm-search-data-export:latest
-docker run --volume /tmp:/data osm-search-data-export  --input overpass --bbox "8.82,38.63,9.11,38.91"   --output json --outpath /data/search.json
+docker run --volume /tmp:/data osm-search-data-export  --input overpass --bbox "8.82,38.63,9.11,38.91" --output json-compact --outpath /data/search.json
 cp /tmp/search.json ../AddisMapTransit/assets/data/ search.json
 ```