Repository: cli/cli (go)

Issue:
Standardise markup for URLs in docs
### Describe the feature or problem you’d like to solve

> Something I realized over the course of this PR is that URLs formatted with `<` and `>` are the only variants that get turned into links on the CLI manual website.
> 
> Rather than extending this PR further, that might be a great follow up to review that behavior and align it.
> 
> _Originally posted by @andyfeller in https://github.com/cli/cli/pull/8342#discussion_r1412121749_

### Proposed solution

Another round of checking current manual webpages or markers in code base one by one.

### Additional context

From my memory of proposing #8342, the most un-marked case is `github.com`, which is usually used to denote the `HOST`.

https://github.com/cli/cli/blob/b215d03e7b5990ea35bc0870a55d7b84f5d8c987/pkg/cmd/extension/command.go#L303-L304
https://github.com/cli/cli/blob/b215d03e7b5990ea35bc0870a55d7b84f5d8c987/pkg/cmd/search/code/code.go#L42-L44
https://github.com/cli/cli/blob/b215d03e7b5990ea35bc0870a55d7b84f5d8c987/pkg/cmd/root/help_topic.go#L45-L47

Pull request description:
Standardize URLs
Fixes #8404.

Patch:
diff --git a/pkg/cmd/api/api.go b/pkg/cmd/api/api.go
index a1308d09f..51febdfc9 100644
--- a/pkg/cmd/api/api.go
+++ b/pkg/cmd/api/api.go
@@ -201,12 +201,12 @@ func NewCmdApi(f *cmdutil.Factory, runF func(*ApiOptions) error) *cobra.Command
 		Annotations: map[string]string{
 			"help:environment": heredoc.Doc(`
 				GH_TOKEN, GITHUB_TOKEN (in order of precedence): an authentication token for
-				github.com API requests.
+				<github.com> API requests.
 
 				GH_ENTERPRISE_TOKEN, GITHUB_ENTERPRISE_TOKEN (in order of precedence): an
 				authentication token for API requests to GitHub Enterprise.
 
-				GH_HOST: make the request to a GitHub host other than github.com.
+				GH_HOST: make the request to a GitHub host other than <github.com>.
 			`),
 		},
 		Args: cobra.ExactArgs(1),
diff --git a/pkg/cmd/auth/login/login.go b/pkg/cmd/auth/login/login.go
index 347fcdb6a..98970be91 100644
--- a/pkg/cmd/auth/login/login.go
+++ b/pkg/cmd/auth/login/login.go
@@ -94,7 +94,7 @@ func NewCmdLogin(f *cmdutil.Factory, runF func(*LoginOptions) error) *cobra.Comm
 			# Start interactive setup
 			$ gh auth login
 
-			# Authenticate against github.com by reading the token from a file
+			# Authenticate against <github.com> by reading the token from a file
 			$ gh auth login --with-token < mytoken.txt
 
 			# Authenticate with specific host
diff --git a/pkg/cmd/extension/command.go b/pkg/cmd/extension/command.go
index 93c385374..1c930fe5a 100644
--- a/pkg/cmd/extension/command.go
+++ b/pkg/cmd/extension/command.go
@@ -300,7 +300,7 @@ func NewCmdExtension(f *cmdutil.Factory) *cobra.Command {
 
 					For GitHub repositories, the repository argument can be specified in
 					%[1]sOWNER/REPO%[1]s format or as a full repository URL.
-					The URL format is useful when the repository is not hosted on github.com.
+					The URL format is useful when the repository is not hosted on <github.com>.
 
 					For remote repositories, the GitHub CLI first looks for the release artifacts assuming
 					that it's a binary extension i.e. prebuilt binaries provided as part of the release.
diff --git a/pkg/cmd/repo/rename/rename.go b/pkg/cmd/repo/rename/rename.go
index e50095d76..5656dd046 100644
--- a/pkg/cmd/repo/rename/rename.go
+++ b/pkg/cmd/repo/rename/rename.go
@@ -59,7 +59,7 @@ func NewCmdRename(f *cmdutil.Factory, runf func(*RenameOptions) error) *cobra.Co
 			with %[1]s--repo%[1]s is renamed.
 			
 			To transfer repository ownership to another user account or organization,
-			you must follow additional steps on GitHub.com
+			you must follow additional steps on <github.com>.
 
 			For more information on transferring repository ownership, see:
 			<https://docs.github.com/en/repositories/creating-and-managing-repositories/transferring-a-repository>
@@ -126,7 +126,7 @@ func renameRun(opts *RenameOptions) error {
 	}
 
 	if strings.Contains(newRepoName, "/") {
-		return fmt.Errorf("New repository name cannot contain '/' character - to transfer a repository to a new owner, you must follow additional steps on GitHub.com. For more information on transferring repository ownership, see <https://docs.github.com/en/repositories/creating-and-managing-repositories/transferring-a-repository>.")
+		return fmt.Errorf("New repository name cannot contain '/' character - to transfer a repository to a new owner, you must follow additional steps on <github.com>. For more information on transferring repository ownership, see <https://docs.github.com/en/repositories/creating-and-managing-repositories/transferring-a-repository>.")
 	}
 
 	if opts.DoConfirm {
diff --git a/pkg/cmd/root/help_topic.go b/pkg/cmd/root/help_topic.go
index 9ae2c5c86..00e9cf552 100644
--- a/pkg/cmd/root/help_topic.go
+++ b/pkg/cmd/root/help_topic.go
@@ -43,7 +43,7 @@ var HelpTopics = []helpTopic{
 		short: "Environment variables that can be used with gh",
 		long: heredoc.Docf(`
 			%[1]sGH_TOKEN%[1]s, %[1]sGITHUB_TOKEN%[1]s (in order of precedence): an authentication token that will be used when
-			a command targets either github.com or a subdomain of ghe.com. Setting this avoids being prompted to
+			a command targets either <github.com> or a subdomain of <ghe.com>. Setting this avoids being prompted to
 			authenticate and takes precedence over previously stored credentials.
 
 			%[1]sGH_ENTERPRISE_TOKEN%[1]s, %[1]sGITHUB_ENTERPRISE_TOKEN%[1]s (in order of precedence): an authentication
diff --git a/pkg/cmd/search/code/code.go b/pkg/cmd/search/code/code.go
index 761d2602c..bec29d3cf 100644
--- a/pkg/cmd/search/code/code.go
+++ b/pkg/cmd/search/code/code.go
@@ -40,7 +40,7 @@ func NewCmdCode(f *cmdutil.Factory, runF func(*CodeOptions) error) *cobra.Comman
 			<https://docs.github.com/search-github/searching-on-github/searching-code>
 
 			Note that these search results are powered by what is now a legacy GitHub code search engine.
-			The results might not match what is seen on github.com, and new features like regex search
+			The results might not match what is seen on <github.com>, and new features like regex search
 			are not yet available via the GitHub API.
 		`),
 		Example: heredoc.Doc(`


Test patch:
diff --git a/pkg/cmd/repo/rename/rename_test.go b/pkg/cmd/repo/rename/rename_test.go
index e33e14438..d6aa2993f 100644
--- a/pkg/cmd/repo/rename/rename_test.go
+++ b/pkg/cmd/repo/rename/rename_test.go
@@ -227,7 +227,7 @@ func TestRenameRun(t *testing.T) {
 				newRepoSelector: "org/new-name",
 			},
 			wantErr: true,
-			errMsg:  "New repository name cannot contain '/' character - to transfer a repository to a new owner, you must follow additional steps on GitHub.com. For more information on transferring repository ownership, see <https://docs.github.com/en/repositories/creating-and-managing-repositories/transferring-a-repository>.",
+			errMsg:  "New repository name cannot contain '/' character - to transfer a repository to a new owner, you must follow additional steps on <github.com>. For more information on transferring repository ownership, see <https://docs.github.com/en/repositories/creating-and-managing-repositories/transferring-a-repository>.",
 		},
 	}