Fix doc links in kubernetes install command docs (#7849)

# Description

Fix incorrect doc links in kubernetes install command docs

## Type of change

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Fixes: radius-project/docs#1204

---------

Signed-off-by: Reshma Abdul Rahim <reshmarahim.abdul@microsoft.com>
Signed-off-by: Vishwanath Hiremath <vhiremath@microsoft.com>
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Signed-off-by: Reshma Abdul Rahim <61033581+Reshrahim@users.noreply.github.com>
Signed-off-by: nithyatsu <nithyasu@microsoft.com>
Signed-off-by: Brooke Hamilton <brooke@azuredev.io>
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Co-authored-by: Vishwanath Hiremath <100623239+vishwahiremat@users.noreply.github.com>
Co-authored-by: Lakshmi Javadekar <103459615+lakshmimsft@users.noreply.github.com>
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Co-authored-by: Brooke Hamilton <brooke@azuredev.io>
Co-authored-by: Ryan Nowak <nowakra@gmail.com>
Co-authored-by: Will Smith <willdavsmith@gmail.com>
Co-authored-by: Karishma Chawla <kachawla@microsoft.com>
Co-authored-by: Shruthi Kumar <shruthikumar@microsoft.com>
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Co-authored-by: Vishwanath Hiremath <vhiremath@microsoft.com>
Co-authored-by: karishma-chawla <74574173+karishma-chawla@users.noreply.github.com>

pkg/cli/cmd/install/kubernetes/kubernetes.go

@@ -41,9 +41,9 @@ func NewCommand(factory framework.Factory) (*cobra.Command, framework.Runner) {
 		Long: `Install Radius in a Kubernetes cluster using the Radius Helm chart.
 By default 'rad install kubernetes' will install Radius with the version matching the rad CLI version.
 
-Radius will be installed in the 'radius-system' namespace. For more information visit https://docs.radapp.io/concepts/architecture/
+Radius will be installed in the 'radius-system' namespace. For more information visit https://docs.radapp.io/concepts/technical/architecture/
 
-Overrides can be set by specifying Helm chart values with the '--set' flag. For more information visit https://docs.radapp.io/operations/platforms/kubernetes/install/.
+Overrides can be set by specifying Helm chart values with the '--set' flag. For more information visit https://docs.radapp.io/guides/operations/kubernetes/install/.
 `,
 		Example: `# Install Radius with default settings in current Kubernetes context
 rad install kubernetes