Add issue template and other fixes

.github/ISSUE_TEMPLATE/yaml.md

diff --git a/.github/ISSUE_TEMPLATE/yaml.md b/.github/ISSUE_TEMPLATE/yaml.md
new file mode 100644
index 0000000..d6a7c7f
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/yaml.md
@@ -0,0 +1,5 @@
+---
+name: "package:yaml"
+about: "Create a bug or file a feature request against package:yaml."
+labels: "package:yaml"
+---
\ No newline at end of file

pkgs/yaml/pubspec.yaml

diff --git a/pkgs/yaml/pubspec.yaml b/pkgs/yaml/pubspec.yaml
index be7d165..bbdc216 100644
--- a/pkgs/yaml/pubspec.yaml
+++ b/pkgs/yaml/pubspec.yaml
@@ -1,7 +1,7 @@
 name: yaml
 version: 3.1.3-wip
 description: A parser for YAML, a human-friendly data serialization standard
-repository: https://github.com/dart-lang/yaml
+repository: https://github.com/dart-lang/tools/tree/main/pkgs/yaml
 topics:
  - yaml
  - config-format