Minor tweaks to README.md

README.md

@@ -4,10 +4,11 @@ This project is a self-hosted utility which will make HTTP POST
 requests to remote web-hooks when new items appear in an RSS feed.
 
 
+
 ## Rational
 
 I have a couple of webhooks in-place already which will take incoming
-HTTP requests and "do stuff" with them, for example:
+HTTP submissions and "do stuff" with them, for example:
 
 * Posting to my alerting system.
    * Which is called [purppura](https://github.com/skx/purppura/) and is pretty neat.
@@ -20,6 +21,7 @@ github releases of projects.  For example my git-host runs [gitbucket](https://g
 * https://github.com/gitbucket/gitbucket/releases.atom
 
 
+
 ## Deployment
 
 If you have a working golang setup you should be able to install this
@@ -29,6 +31,7 @@ application via:
     go install github.com/skx/rss2hook
 
 
+
 ## Setup
 
 There are two parts to the setup:
@@ -49,7 +52,8 @@ can test interactively like so:
      $ rss2hook -config ./sample.cfg
 
 
-### Sample Webhook
+
+### Sample Webhook Receiver
 
 There is a simple webserver located beneath [webhook/](webhook/) which
 will listen upon http://localhost:8080, and dump any POST submission to the
@@ -73,6 +77,18 @@ see how things work:
     $ rss2hook --config=sample.cfg
 
 
+
+## Implementation Notes
+
+* By default the server will poll all configured feeds immediately
+upon startup.
+   * It will look for changes every five minutes.
+* To ensure items are only announced once state is kept on the filesystem.
+   * Beneath the directory `~/.rss2hook/seen/`.
+* Feed items are submitted to the webhook as JSON.
+
+
+
 ## Feedback?
 
 Turning this into a SaaS project would be interesting.  A simple setup