Fix examples link in README.md (#2242)

* Fix examples link in README.md

It is currently pointing to our docs homepage rather than the examples section.

* Update AUTHORS

* Update link to unitaryHACK in CHANGELOG.md (#2243)

The link in like 1305 of the CHANGELOG ([unitaryHACK](https://unitaryfund.github.io/unitaryhack/)!) failed to resolve in the docs build (https://github.com/unitaryfund/mitiq/actions/runs/8425856701/job/23072890372#step:6:1040). Link has now been updated to reflect the new domain for the 2021 unitaryhack website.

* Update link to 2021 unitaryHACK in CHANGELOG.md (#2246)


* Update unitaryhack link in Changelog to 2021 website

AUTHORS

@@ -18,6 +18,7 @@ Nathaniel T. Stemen
 Nathan Shammah
 Will J. Zeng
 Min Li
+Jordan Sullivan
 
 L-P-B
 Paul Chung
@@ -56,4 +57,4 @@ Farzad Kianvash
 Yash Prabhat
 Vladimir Kozhukalov
 Francesc Sabater
-Emiliano Godinez
+Emiliano Godinez

CHANGELOG.md

@@ -1301,7 +1301,7 @@ Another important change is the integration with Amazon Braket, such that Mitiq
 
 In the context of probabilistic error cancellation, the sub-module `mitiq.pec.representations` has been significantly improved. Now one can easily compute the optimal quasi-probabiliy representation of an ideal gate as a linear combination of `NoisyOperation` objects.
 
-Thanks to all contributors (@L-P-B, @Aaron-Robertson, @francespoblete, @LaurentAjdnik, @maxtremblay, @andre-a-alves, @paniash, @purva-thakre) and in particular to the participants of [unitaryHACK](https://unitaryfund.github.io/unitaryhack/)!
+Thanks to all contributors (@L-P-B, @Aaron-Robertson, @francespoblete, @LaurentAjdnik, @maxtremblay, @andre-a-alves, @paniash, @purva-thakre) and in particular to the participants of [unitaryHACK](https://2021.unitaryhack.dev/)!
 
 ### All Changes
 

README.md

@@ -74,7 +74,7 @@ Try out the calibration module demonstrated below to help find the best paramete
 
 ![](docs/source/img/calibration.gif)
 
-See our [guides](https://mitiq.readthedocs.io/en/stable/guide/guide.html) and [examples](https://mitiq.readthedocs.io) for more explanation, techniques, and benchmarks.
+See our [guides](https://mitiq.readthedocs.io/en/stable/guide/guide.html) and [examples](https://mitiq.readthedocs.io/en/stable/examples/examples.html) for more explanation, techniques, and benchmarks.
 
 ## Quick Tour