added changelog about minimongo

docs/generators/changelog/versions/3.0.md

@@ -83,6 +83,14 @@
 * `minifier-css`:
     - `minifyCss` is now async.
 
+* `minimongo@get-version`:
+    TODO: add this aswell to the minimongo docs
+    - `cursor.observe` now returns `isReady` and `isReadyPromise` wich indicates
+    if the cursor is ready and if the callbacks are have been called.
+    If you only use it in the `Client` or as a `LocalCollection` things have not
+    changed.
+
+
 * `webapp`:
     - `WebAppInternals.getBoilerplate` is now async.
     - Changed engine from connect to express and changed api naming to match express. See below: