added installation notes

Author: elousiv

manifests/g/GitKraken/cli/3.0.1/GitKraken.cli.locale.en-US.yaml

@@ -30,6 +30,7 @@ Tags:
   - utility
   - version-control
 ReleaseNotes: "## Changelog\n### \U0001F539 Others\n* Add homebrew workflow and fix winget\n"
+InstallationNotes: https://github.com/gitkraken/gk-cli/blob/main/README.md#installation
 ReleaseNotesUrl: https://github.com/gitkraken/gk-cli/releases/tag/v3.0.1
 ManifestType: defaultLocale
 ManifestVersion: 1.9.0