Update README.md for 8.2.1.1 (#129)

Automated update of `README.md` for release 8.2.1.1

Co-authored-by: keith <keith@users.noreply.github.com>

README.md

diff --git a/README.md b/README.md
index c065b05..e27cbec 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@
 ```python
 bazel_dep(
     name = "buildifier_prebuilt",
-    version = "8.2.1",
+    version = "8.2.1.1",
     dev_dependency = True,
 )
 ```
@@ -63,10 +63,10 @@
 
 http_archive(
     name = "buildifier_prebuilt",
-    sha256 = "b0434d14d8ca6eb87ae1d0e71911aeb83ffa3096c6b81db7e26c1698fd980d42",
-    strip_prefix = "buildifier-prebuilt-8.2.1",
+    sha256 = "0a9ea71b0fee1f85c0f7971a036521938aeb68b2e41bf2b5c079e8549fd91cb1",
+    strip_prefix = "buildifier-prebuilt-8.2.1.1",
     urls = [
-        "http://github.com/keith/buildifier-prebuilt/archive/8.2.1.tar.gz",
+        "http://github.com/keith/buildifier-prebuilt/archive/8.2.1.1.tar.gz",
     ],
 )