diff --git a/web/README.md b/web/README.md
index 9e22454..18d7274 100644
--- a/web/README.md
+++ b/web/README.md
@@ -12,6 +12,7 @@ document root.
   * `{{CONTENT}}` - the main content of the page, generated by other templates
   * `{{TITLE}}` - page title
   * `{{GENERATED_AT}}` - string description of the time the page was generated
+  * `{{SCHEDULE}}` - Concatenated markup generated by `schedule-item.template`
 * `index.template` - used for the site index
   * `{{CONTENT}}` - the main content of the page
 * `item.template` is used for each satellite pass included in an index.
@@ -27,4 +28,7 @@ document root.
   * `{{SRC}}` - image `src` attribute
   * `{{ALT}}` - `alt` attribute for the image
   * `{{CAPTION}}` - a string caption describing the image
-
+* `schedule-item.template` generates the markup for a single predicted satellite pass
+  * `{{DATE}}` - date and time of the beginning of the signal (above the horizon)
+  * `{{SATELLITE}}` - satellite name (ex: NOAA 15)
+  * `{{DURATION}}` - duration (in seconds) until loss of signal (below the horizon)