docs: Fixing typos in AppInitializer docs.

Staged to: go/dac-stage/reference/androidx/startup/AppInitializer

Bug: 202729754
Test: ./gradlew dackkaDocs
Change-Id: I92a59a04d89cbca9b4ce76433f1d5e6b962aae68
diff --git a/startup/startup-runtime/src/main/java/androidx/startup/AppInitializer.java b/startup/startup-runtime/src/main/java/androidx/startup/AppInitializer.java
index a56b93e..7458146 100644
--- a/startup/startup-runtime/src/main/java/androidx/startup/AppInitializer.java
+++ b/startup/startup-runtime/src/main/java/androidx/startup/AppInitializer.java
@@ -35,9 +35,10 @@
 import java.util.Set;
 
 /**
- * An {@link AppInitializer} can be used to initialize all discovered [ComponentInitializer]s.
- * <br/>
- * The discovery mechanism is via `<meta-data>` entries in the merged `AndroidManifest.xml`.
+ * An {@link AppInitializer} can be used to initialize all discovered
+ * <code>ComponentInitializer</code>s. The discovery mechanism is via
+ * <code>&lt;meta-data&gt;</code> entries in the merged
+ * <code>AndroidManifest.xml</code>.
  */
 @SuppressWarnings("WeakerAccess")
 public final class AppInitializer {