Update project links.

.github/ISSUE_TEMPLATE/config.yml

@@ -1,4 +1,4 @@
 contact_links:
     - name: ❓ Questions and Help 🤔
-      url: https://discord.gg/tbd (/add your discord channel if applicable)
+      url: https://discord.com/invite/c79mzZnu
       about: This issue tracker is not for support questions. Please refer to the community for more help. 

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 There are many ways to be an open source contributor, and we're here to help you on your way! You may:
 
-* Propose ideas in our discord
+* Propose ideas in our [discord](https://discord.com/invite/c79mzZnu)
 * Raise an issue or feature request in our [issue tracker](https://github.com/block/elasticgraph/issues)
 * Help another contributor with one of their questions, or a code review
 * Suggest improvements to our Getting Started documentation by supplying a Pull Request
@@ -54,7 +54,7 @@ Anyone from the community is welcome (and encouraged!) to raise issues via
 
 ### Discussions
 
-Design discussions and proposals take place in our discord.
+Design discussions and proposals take place in our [discord](https://discord.com/invite/c79mzZnu).
 
 We advocate an asynchronous, written debate model - so write up your thoughts and invite the community to join in!
 

GOVERNANCE.md

@@ -12,7 +12,7 @@
 
 Anyone may be a contributor to Block open source projects. Contribution may take the form of:
 
-* Asking and answering questions on the Discord or GitHub Issues
+* Asking and answering questions on the [Discord](https://discord.com/invite/c79mzZnu) or [GitHub Issues](https://github.com/block/elasticgraph/issues).
 * Filing an issue
 * Offering a feature or bug fix via a Pull Request
 * Suggesting documentation improvements

gemspec_helper.rb

@@ -19,9 +19,21 @@ def self.define_elasticgraph_gem(gemspec_file:, category:)
       spec.version = ElasticGraph::VERSION
       spec.authors = ["Myron Marston", "Ben VandenBos", "Block Engineering"]
       spec.email = ["[email protected]"]
+      spec.homepage = "https://block.github.io/elasticgraph/"
       spec.license = "MIT"
       spec.metadata["gem_category"] = category.to_s
 
+      # See https://guides.rubygems.org/specification-reference/#metadata
+      # for metadata entries understood by rubygems.org.
+      spec.metadata = {
+        "bug_tracker_uri" => "https://github.com/block/elasticgraph/issues",
+        "changelog_uri" => "https://github.com/block/elasticgraph/releases/tag/v#{ElasticGraph::VERSION}",
+        "documentation_uri" => "https://block.github.io/elasticgraph/docs/main/", # TODO(#2): update this URL to link to the exact doc version
+        "homepage_uri" => "https://block.github.io/elasticgraph/",
+        "source_code_uri" => "https://github.com/block/elasticgraph/tree/v#{ElasticGraph::VERSION}/#{spec.name}",
+        "gem_category" => category.to_s # used by script/update_readme
+      }
+
       # Specify which files should be added to the gem when it is released.
       # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
       # We also remove `.rspec` and `Gemfile` because these files are not needed in