docs: port docs source to markdown, update all links (#405)

* port source files to markdown

* clean up links in table

* update ibm sentance

* use mystnb code cells

* update .gitignore

* update all remaining tket.quantinuum.com links

* fix invalid table

* fix TketBackend links

* update theming submodule

* update table heading

* delete duplicate changelog

* update markdown changelog

* fix accidental changes to ibm.py

* fix a link

* use latest submodule version

.gitignore

@@ -15,3 +15,5 @@ pytket/extensions/qiskit/_metadata.py
 *.ipynb
 docs/pyproject.toml
 docs/poetry.lock
+.jupyter_cache/
+jupyter_execute/

README.md

@@ -3,15 +3,15 @@
 [![Slack](https://img.shields.io/badge/Slack-4A154B?style=for-the-badge&logo=slack&logoColor=white)](https://tketusers.slack.com/join/shared_invite/zt-18qmsamj9-UqQFVdkRzxnXCcKtcarLRA#)
 [![Stack Exchange](https://img.shields.io/badge/StackExchange-%23ffffff.svg?style=for-the-badge&logo=StackExchange)](https://quantumcomputing.stackexchange.com/tags/pytket)
 
-[Pytket](https://tket.quantinuum.com/api-docs/index.html) is a python module for interfacing
+[Pytket](https://docs.quantinuum.com/tket/api-docs/index.html) is a python module for interfacing
 with tket, a quantum computing toolkit and optimising compiler developed by Quantinuum.
 
 `pytket-qiskit` is an extension to `pytket` that allows `pytket` circuits to be
 run on IBM backends and simulators, as well as conversion to and from Qiskit
 representations.
 
 Some useful links:
-- [API Documentation](https://tket.quantinuum.com/extensions/pytket-qiskit/)
+- [API Documentation](https://docs.quantinuum.com/tket/extensions/pytket-qiskit/)
 
 ## Getting started
 

docs/api.rst → docs/api.md

@@ -1,55 +1,78 @@
-API documentation
-~~~~~~~~~~~~~~~~~
+# API documentation
 
+```{eval-rst}
 .. autoclass:: pytket.extensions.qiskit.IBMQBackend
     :special-members: __init__
     :show-inheritance:
     :members:
+```
 
+```{eval-rst}
 .. autoclass:: pytket.extensions.qiskit.IBMQEmulatorBackend
     :special-members: __init__
     :show-inheritance:
     :members:
+```
 
+```{eval-rst}
 .. autoclass:: pytket.extensions.qiskit.AerBackend
     :special-members: __init__
     :inherited-members:
     :members:
+```
 
+```{eval-rst}
 .. autoclass:: pytket.extensions.qiskit.AerStateBackend
     :special-members: __init__
     :inherited-members:
     :members:
+```
 
+```{eval-rst}
 .. autoclass:: pytket.extensions.qiskit.AerUnitaryBackend
     :special-members: __init__
     :inherited-members:
     :members:
+```
 
+```{eval-rst}
 .. autoclass:: pytket.extensions.qiskit.AerDensityMatrixBackend
     :special-members: __init__
     :inherited-members:
     :members:
+```
 
+```{eval-rst}
 .. automodule:: pytket.extensions.qiskit
     :members: qiskit_to_tk, tk_to_qiskit, process_characterisation
+```
 
+```{eval-rst}
 .. automodule:: pytket.extensions.qiskit.tket_backend
     :show-inheritance:
     :members:
     :special-members: __init__
+```
 
+```{eval-rst}
 .. automodule:: pytket.extensions.qiskit.backends.crosstalk_model
     :members: CrosstalkParams
 
+```
 
+```{eval-rst}
 .. automodule:: pytket.extensions.qiskit.tket_pass
     :special-members: __init__
     :members:
+```
 
+```{eval-rst}
 .. automodule:: pytket.extensions.qiskit.tket_job
     :special-members: __init__
     :members:
+```
 
+```{eval-rst}
 .. automodule:: pytket.extensions.qiskit.backends.config
     :members:
+```