Fixed missing end quote in android_instrumentation_test's documentation

RELNOTES: None.
PiperOrigin-RevId: 186617351
diff --git a/src/main/java/com/google/devtools/build/lib/rules/android/AndroidInstrumentationTestRule.java b/src/main/java/com/google/devtools/build/lib/rules/android/AndroidInstrumentationTestRule.java
index d35ee6e..937516d 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/android/AndroidInstrumentationTestRule.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/android/AndroidInstrumentationTestRule.java
@@ -101,7 +101,7 @@
   any other needed applications, and run the tests defined in the test package.
 </p>
 <p>
-  The <a href="${link android_instrumentation_test.test_app}>test_app</a> attribute specifies the
+  The <a href="${link android_instrumentation_test.test_app}">test_app</a> attribute specifies the
   <code>android_binary<code> which contains the test. This <code>android_binary</code> in turn
   specifies the <code>android_binary</code> application under test through its
   <a href="${link android_binary.instruments">instruments</a> attribute.