update lint files docs (dart-lang/lints#88)

diff --git a/pkgs/lints/.github/dependabot.yaml b/pkgs/lints/.github/dependabot.yaml
new file mode 100644
index 0000000..2144819
--- /dev/null
+++ b/pkgs/lints/.github/dependabot.yaml
@@ -0,0 +1,8 @@
+# Dependabot configuration file.
+version: 2
+
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
diff --git a/pkgs/lints/.github/workflows/validate.yml b/pkgs/lints/.github/workflows/validate.yml
index 09461b0..59847a7 100644
--- a/pkgs/lints/.github/workflows/validate.yml
+++ b/pkgs/lints/.github/workflows/validate.yml
@@ -21,7 +21,7 @@
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
 
       - name: Check for sources
         run: |
diff --git a/pkgs/lints/CHANGELOG.md b/pkgs/lints/CHANGELOG.md
index 9201fe6..fd5cddc 100644
--- a/pkgs/lints/CHANGELOG.md
+++ b/pkgs/lints/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 2.0.1
+
+- Updated documentation for the `lib/core.yaml` and `lib/recommended.yaml`
+  analysis configurations.
+
 ## 2.0.0
 
 - Added the following lints to core.yaml:
diff --git a/pkgs/lints/README.md b/pkgs/lints/README.md
index 2748bc6..2d9751a 100644
--- a/pkgs/lints/README.md
+++ b/pkgs/lints/README.md
@@ -1,5 +1,6 @@
-[![pub package](https://img.shields.io/pub/v/lints.svg)](https://pub.dev/packages/lints)
 [![Build Status](https://github.com/dart-lang/lints/workflows/validate/badge.svg)](https://github.com/dart-lang/lints/actions?query=branch%3Amain)
+[![pub package](https://img.shields.io/pub/v/lints.svg)](https://pub.dev/packages/lints)
+[![package publisher](https://img.shields.io/pub/publisher/lints.svg)](https://pub.dev/packages/lints/publisher)
 
 # Official Dart lint rules
 
diff --git a/pkgs/lints/lib/core.yaml b/pkgs/lints/lib/core.yaml
index b5e8cd2..ec6fff7 100644
--- a/pkgs/lints/lib/core.yaml
+++ b/pkgs/lints/lib/core.yaml
@@ -1,3 +1,9 @@
+# This is a set of core lints used to identify critical issues. See
+# https://github.com/dart-lang/lints for more information.
+#
+# For documentation about customizing static analysis for your project, see
+# https://dart.dev/guides/language/analysis-options.
+
 linter:
   rules:
     - avoid_empty_else
diff --git a/pkgs/lints/lib/recommended.yaml b/pkgs/lints/lib/recommended.yaml
index 13999d1..7541773 100644
--- a/pkgs/lints/lib/recommended.yaml
+++ b/pkgs/lints/lib/recommended.yaml
@@ -1,3 +1,12 @@
+# This set of lints builds on top of `package:lints/core.yaml`; it includes
+# lints that help identify additional issues that may lead to problems when
+# running or consuming Dart code, as well as lints that enforce writing Dart
+# using a single, idiomatic style. See https://github.com/dart-lang/lints for
+# more information.
+#
+# For documentation about customizing static analysis for your project, see
+# https://dart.dev/guides/language/analysis-options.
+
 include: package:lints/core.yaml
 
 linter:
diff --git a/pkgs/lints/pubspec.yaml b/pkgs/lints/pubspec.yaml
index 3d19220..13260db 100644
--- a/pkgs/lints/pubspec.yaml
+++ b/pkgs/lints/pubspec.yaml
@@ -1,12 +1,13 @@
 name: lints
-description: Official Dart lint rules. Defines the 'core' and 'recommended' set of lints suggested by the Dart team.
-homepage: https://github.com/dart-lang/lints
+version: 2.0.1
+description: >
+  Official Dart lint rules. Defines the 'core' and 'recommended' set of lints
+  suggested by the Dart team.
 repository: https://github.com/dart-lang/lints
-version: 2.0.0
 
 environment:
-  sdk: '>=2.17.0-206.0.dev <3.0.0'
+  sdk: '>=2.17.0 <3.0.0'
 
+# NOTE: Code is not allowed in this package. Do not add dependencies.
 # dependencies:
 # dev_dependencies:
-# NOTE: Code is not allowed in this package. Do not add dependencies.