update the issue templates for package:lints (#887)

diff --git a/.github/ISSUE_TEMPLATE/lints.md b/.github/ISSUE_TEMPLATE/lints.md
index 7bf2378..92e3ce7 100644
--- a/.github/ISSUE_TEMPLATE/lints.md
+++ b/.github/ISSUE_TEMPLATE/lints.md
@@ -3,3 +3,11 @@
 about: "Create a bug or file a feature request against package:lints."
 labels: "package:lints"
 ---
+
+**Note** this issue tracker is used to:
+
+- suggest adding an _existing_ lint to the core or recommended lint sets, or
+- file a bug or enhancement against `package:lints`
+
+To propose an entirely new lint, see instead https://github.com/dart-lang/sdk;
+thanks!
diff --git a/.github/ISSUE_TEMPLATE/lints_propoposal.md b/.github/ISSUE_TEMPLATE/lints_propoposal.md
deleted file mode 100644
index 9f1b277..0000000
--- a/.github/ISSUE_TEMPLATE/lints_propoposal.md
+++ /dev/null
@@ -1,18 +0,0 @@
----
-name: Add an existing lint to the `core` or `recommended` rule set
-about: Propose adding an existing lint rule to the `core` or `recommended` rule set.
-labels: ["package:lints", "lints-proposal"]
----
-
-Note that this should be used to suggest adding an existing lint to the
-package:lints lint sets (core, recommended, and package:flutter_lints). For a
-suggestion for a new lint, please file an issue at
-https://github.com/dart-lang/sdk.
-
-**Describe the rule you'd like to see added and to what rule set**
-
-Include as much detail as you can. 
-
-**Additional context**
-
-Add any other considerations or context here.
diff --git a/pkgs/lints/README.md b/pkgs/lints/README.md
index 5a127dd..049b9d1 100644
--- a/pkgs/lints/README.md
+++ b/pkgs/lints/README.md
@@ -110,6 +110,6 @@
 [customizing static analysis]: https://dart.dev/tools/analysis
 [rules]: https://dart.dev/tools/linter-rules
 [pub.dev]: https://pub.dev
-[issue]: https://github.com/dart-lang/core/issues
+[issue]: https://github.com/dart-lang/core/issues/new?template=lints.md
 [sdk repo]: https://github.com/dart-lang/sdk
 [`package:flutter_lints`]: https://pub.dev/packages/flutter_lints