Note requirements

README.md

@@ -3,8 +3,13 @@ Logs to alerts
 
 Pipe logs to Mattermost or Slack webhooks
 
+# Requirements
+* Mattermost or Slack instance
+* `tail` and `curl` in `$PATH`
+
 ## TODO
 
 * Config file(s)
 * Init script with defaults override, restart, etc
-* Replace PHP script with straight bash script
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+* Replace PHP script with straight bash script
+* Make binary deps paths configurable?
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