[docs] Miscellaneous fixes to improve cross-linking (#4122)

This PR improves the documentation by adding references to complete
usage examples and listing aggregators under the hardware backends.

---------

Signed-off-by: Pradnya Khalate <pkhalate@nvidia.com>
Signed-off-by: Pradnya Khalate <148914294+khalatepradnya@users.noreply.github.com>
Co-authored-by: efratshabtai <efratshabtai@users.noreply.github.com>

Author: 2 people

docs/sphinx/using/backends/cloud/scaleway.rst

@@ -133,3 +133,6 @@ or do it by calling the Scaleway's QaaS API:
 
     # Terminate the session
     curl -X POST -H "X-Auth-Token: $SCW_SECRET_KEY" -H "Content-Type: application/json" "https://api.scaleway.com/qaas/v1alpha1/sessions/{session_id}/terminate"
+
+
+To see a complete example, take a look at :ref:`Scaleway QaaS examples <scaleway-examples>`.

docs/sphinx/using/backends/hardware.rst

@@ -16,3 +16,9 @@ To submit to a hardware backend, you need an account with the respective provide
         Neutral Atom QPUs <hardware/neutralatom.rst>
         Photonic QPUs <hardware/photonic.rst>
         Quantum Control Systems <hardware/qcontrol.rst>
+
+- :doc:`Cloud <cloud>`
+
+  - :doc:`Amazon Braket <cloud/braket>`
+
+  - :doc:`Scaleway QaaS <cloud/scaleway>`

docs/sphinx/using/backends/hardware/superconducting.rst

@@ -520,15 +520,6 @@ Submitting
 To see a complete example of using Quantum Circuits' backends, please take a look at the
 :ref:`Quantum Circuits examples <quantum-circuits-examples>`.
 
-.. note:: 
-
-        In local emulation mode (``emulate`` flag set to ``True``), the program will be executed on the :ref:`default simulator <default-simulator>`.
-        The environment variable ``CUDAQ_DEFAULT_SIMULATOR`` can be used to change the emulation simulator. 
-        
-        For example, the simulation floating point accuracy and/or the simulation capabilities (e.g., maximum number of qubits, supported quantum gates),
-        depend on the selected simulator.  
-        
-        Any environment variables must be set prior to setting the target or running "`import cudaq`".
 
 TII
 +++
@@ -596,3 +587,16 @@ Submitting jobs
         nvq++ --target tii --tii-device tii-sim --tii-project personal main.cpp -o main.x
 
     The ``TII_API_TOKEN`` environment variable must be set at runtime to authenticate the job.
+
+To see a complete example of using TII's backends, please take a look at the :ref:`TII examples <tii-examples>`.
+
+
+.. note:: 
+
+        In local emulation mode (``emulate`` flag set to ``True``), the program will be executed on the :ref:`default simulator <default-simulator>`.
+        The environment variable ``CUDAQ_DEFAULT_SIMULATOR`` can be used to change the emulation simulator. 
+        
+        For example, the simulation floating point accuracy and/or the simulation capabilities (e.g., maximum number of qubits, supported quantum gates),
+        depend on the selected simulator.  
+        
+        Any environment variables must be set prior to setting the target or running `import cudaq`.