[hotfix] two description updates
diff --git a/README.md b/README.md
index 764fb5c..c559fed 100644
--- a/README.md
+++ b/README.md
@@ -91,6 +91,12 @@
         // for access from China, you may need to uncomment this line
         maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
         mavenCentral()
+        maven {
+            url "https://repository.apache.org/content/repositories/snapshots/"
+            mavenContent {
+                snapshotsOnly()
+            }
+        }
     }
 ```
 </details>
diff --git a/long-ride-alerts/README.md b/long-ride-alerts/README.md
index ff152d0..7c6527e 100644
--- a/long-ride-alerts/README.md
+++ b/long-ride-alerts/README.md
@@ -17,7 +17,7 @@
 under the License.
 -->
 
-# `ProcessFunction` and Timers (Long Ride Alerts)
+# Lab: `ProcessFunction` and Timers (Long Ride Alerts)
 
 The goal of the "Long Ride Alerts" exercise is to indicate whenever a taxi ride started two hours ago, and is still ongoing.