Update/docs (#410)

* remove QIR warning

* add section about QCsupport@quantinuum.com

* update doc landing page

README.md

@@ -27,6 +27,10 @@ Please file bugs and feature requests on the Github
 
 There is also a Slack channel for discussion and support. Click [here](https://tketusers.slack.com/join/shared_invite/zt-18qmsamj9-UqQFVdkRzxnXCcKtcarLRA#/shared-invite/email) to join.
 
+## Hardware Support
+
+In case of questions about the hardware you can contact QCsupport@quantinuum.com.
+
 ## Development
 
 To install this extension in editable mode, simply change to this directory, and run:

docs/intro.txt

@@ -27,6 +27,8 @@ and Windows. To install, run:
 **Web Interface:**
 https://um.qapi.quantinuum.com/
 
+In case of questions about the hardware you can get in contact with the team sending an email to QCsupport@quantinuum.com.
+
 Available Backends
 ==================
 The pytket-quantinuum extension allows the user to access the following quantum devices, emulators and syntax checkers. These backends can be initialised  by passing the device name as a string to the ``QuantinuumBackend`` class. The available devices are:

pytket/extensions/quantinuum/backends/quantinuum.py

@@ -1028,9 +1028,6 @@ def process_circuits(
                             results_selection.append((name, i))
                 else:
                     assert language == Language.QIR
-                    warnings.warn(
-                        "Support for Language.QIR is experimental; this may fail!"
-                    )
                     for name, count in Counter(bit.reg_name for bit in c0.bits).items():
                         for i in range(count):
                             results_selection.append((name, i))