This mod adds signposts, so you can write some information on them. This is supposed to be helpful in multiplayer and in general for describing some complicated circuit networks (eg. which lamp is responsible for what etc).
0.0.4 version: * works with Factorio 0.15
0.0.3 version: * works with Factorio 0.14 * hotkey for reading the sign was removed, instead the console message is printed when player is approaching the sign
0.0.2 version:
* signpost text could be read using Z hotkey: