diff --git a/README.md b/README.md
index 17214ef..1bb6d4a 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,7 @@ resource_types:
   type: registry-image
   source:
     repository: mkorpershoek/repo-resource
+    tag: v1.0.0
 
 resources:
 - name: aosp
@@ -50,18 +51,19 @@ resources:
   check_every: 2h # default of 1min seems too frequent
   source:
     url: https://android.googlesource.com/platform/manifest
-    branch: master
+    branch: main
     name: default.xml
     depth: 1 # use shallow clone for faster syncing
     jobs: 4  # run with -j4
+    check_jobs: 6 # do 6 git ls-remote operations in parallel (check only)
 ```
 
 ## Behavior
 
 ### `check`: Check for new versions in each project under a manifest
 
-Repo init and repo sync are called for a given manifest.
-After that, `--revision-as-HEAD` is called to capture the HEADs of each each project.
+Repo init and `git ls-remote` are called for a given manifest.
+After that we update the input manifest with the revisions retrieved from `git ls-remote`.
 The whole list of projects is returned as a "manifest version".
 
 ### `in`: Syncs the repository, for a given manifest version