Update index.html dependency with Bazel section.
diff --git a/index.html b/index.html
index d571cfa..8b6221c 100644
--- a/index.html
+++ b/index.html
@@ -156,7 +156,7 @@
 git_repository(
     name = "com_github_gflags_gflags",
     remote = "https://github.com/gflags/gflags.git",
-    tags = ["v2.2.2"]
+    tag = "v2.2.2"
 )
 </pre>
 
@@ -172,7 +172,7 @@
 cc_binary(
     name = "foo",
     srcs = ["main.cc"],
-    deps = ["//external:gflags"],
+    deps = ["@com_github_gflags_gflags//:gflags"],
 )
 </pre>