Doc: Fix IPAC23 DOI (#4399)

Changed since preprint.

Author: ax3l

Docs/source/acknowledge_us.rst

@@ -55,9 +55,8 @@ If your project uses a specific algorithm or component, please consider citing t
 
 - Sandberg R T, Lehe R, Mitchell C E, Garten M, Qiang J, Vay J-L and Huebl A.
   **Hybrid Beamline Element ML-Training for Surrogates in the ImpactX Beam-Dynamics Code**.
-  14th International Particle Accelerator Conference (IPAC'23), WEPA101, *in print*, 2023.
-  `preprint <https://www.ipac23.org/preproc/pdf/WEPA101.pdf>`__,
-  `DOI:10.18429/JACoW-IPAC-23-WEPA101 <https://doi.org/10.18429/JACoW-IPAC-23-WEPA101>`__
+  14th International Particle Accelerator Conference (IPAC'23), WEPA101, 2023.
+  `DOI:10.18429/JACoW-IPAC2023-WEPA101 <https://doi.org/10.18429/JACoW-IPAC2023-WEPA101>`__
 
 - Huebl A, Lehe R, Zoni E, Shapoval O, Sandberg R T, Garten M, Formenti A, Jambunathan R, Kumar P, Gott K, Myers A, Zhang W, Almgren A, Mitchell C E, Qiang J, Sinn A, Diederichs S, Thevenet M, Grote D, Fedeli L, Clark T, Zaim N, Vincenti H, Vay JL.
   **From Compact Plasma Particle Sources to Advanced Accelerators with Modeling at Exascale**.

Docs/source/highlights.rst

@@ -24,11 +24,10 @@ Scientific works in laser-plasma and beam-plasma acceleration.
    Phys. Rev. Research **5**, 033112, 2023
    `DOI:10.1103/PhysRevResearch.5.033112 <https://doi.org/10.1103/PhysRevResearch.5.033112>`__
 
-#. Sandberg R T, Lehe R, Mitchell C E, Garten M, Qiang J, Vay J-L, Huebl A.
+#. Sandberg R T, Lehe R, Mitchell C E, Garten M, Qiang J, Vay J-L and Huebl A.
    **Hybrid Beamline Element ML-Training for Surrogates in the ImpactX Beam-Dynamics Code**.
-   14th International Particle Accelerator Conference (IPAC'23), WEPA101, *in print*, 2023.
-   `preprint <https://www.ipac23.org/preproc/pdf/WEPA101.pdf>`__,
-   `DOI:10.18429/JACoW-IPAC-23-WEPA101 <https://doi.org/10.18429/JACoW-IPAC-23-WEPA101>`__
+   14th International Particle Accelerator Conference (IPAC'23), WEPA101, 2023.
+   `DOI:10.18429/JACoW-IPAC2023-WEPA101 <https://doi.org/10.18429/JACoW-IPAC2023-WEPA101>`__
 
 #. Wang J, Zeng M, Li D, Wang X, Gao J.
    **High quality beam produced by tightly focused laser driven wakefield accelerators**.