Add issue template and other fixes

.github/ISSUE_TEMPLATE/stream_channel.md

diff --git a/.github/ISSUE_TEMPLATE/stream_channel.md b/.github/ISSUE_TEMPLATE/stream_channel.md
new file mode 100644
index 0000000..76b5994
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/stream_channel.md
@@ -0,0 +1,5 @@
+---
+name: "package:stream_channel"
+about: "Create a bug or file a feature request against package:stream_channel."
+labels: "package:stream_channel"
+---
\ No newline at end of file

pkgs/stream_channel/CONTRIBUTING.md

diff --git a/pkgs/stream_channel/CONTRIBUTING.md b/pkgs/stream_channel/CONTRIBUTING.md
deleted file mode 100644
index 6f5e0ea..0000000
--- a/pkgs/stream_channel/CONTRIBUTING.md
+++ /dev/null
@@ -1,33 +0,0 @@
-Want to contribute? Great! First, read this page (including the small print at
-the end).
-
-### Before you contribute
-Before we can use your code, you must sign the
-[Google Individual Contributor License Agreement](https://cla.developers.google.com/about/google-individual)
-(CLA), which you can do online. The CLA is necessary mainly because you own the
-copyright to your changes, even after your contribution becomes part of our
-codebase, so we need your permission to use and distribute your code. We also
-need to be sure of various other things—for instance that you'll tell us if you
-know that your code infringes on other people's patents. You don't have to sign
-the CLA until after you've submitted your code for review and a member has
-approved it, but you must do it before we can put your code into our codebase.
-
-Before you start working on a larger contribution, you should get in touch with
-us first through the issue tracker with your idea so that we can help out and
-possibly guide you. Coordinating up front makes it much easier to avoid
-frustration later on.
-
-### Code reviews
-All submissions, including submissions by project members, require review.
-
-### File headers
-All files in the project must start with the following header.
-
-    // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-    // for details. All rights reserved. Use of this source code is governed by a
-    // BSD-style license that can be found in the LICENSE file.
-
-### The small print
-Contributions made by corporations are covered by a different agreement than the
-one above, the
-[Software Grant and Corporate Contributor License Agreement](https://developers.google.com/open-source/cla/corporate).

pkgs/stream_channel/pubspec.yaml

diff --git a/pkgs/stream_channel/pubspec.yaml b/pkgs/stream_channel/pubspec.yaml
index 6524721..c1b8e1f 100644
--- a/pkgs/stream_channel/pubspec.yaml
+++ b/pkgs/stream_channel/pubspec.yaml
@@ -3,7 +3,7 @@
 description: >-
   An abstraction for two-way communication channels based on the Dart Stream
   class.
-repository: https://github.com/dart-lang/stream_channel
+repository: https://github.com/dart-lang/tools/tree/main/pkgs/stream_channel
 
 environment:
   sdk: ^3.3.0