Add a few journal abbreviations (#4412)

src/main/resources/journals/journalList.txt

@@ -3544,6 +3544,7 @@ Communication and Medicine = Commun. Med.
 Communications in Agricultural and Applied Biological Sciences = Commun. Agric. Appl. Biol. Sci.
 Communications in Behavioral Biology. Part A, Original Articles = Commun. Behav. Biol.
 Communications in Computational Physics = Comm. Comput. Phys.
+Communications in Contemporary Mathematics = Commun. Contemp. Math.
 Communications in Mathematical PHysics = Commun. Math. Phys.
 Communications in Nonlinear Science and Numerical Simulation = Commun. Nonlinear Sci. Numer. Simul.
 Communications in Numerical Methods in Engineering = Commun. Numer. Methods Eng.
@@ -7986,6 +7987,7 @@ Journal of Geographical Sciences = J. Geog. Sci.
 Journal of Geological Education = J. Geol. Educ.
 Journal of Geology = J. Geol.
 Journal of Geomagnetism and Geoelectricity = J. Geomagn. Geoelec.
+Journal of Geometric Mechanics = J. Geom. Mech.
 Journal of Geometry and Physics = J. Geom. Phys.
 Journal of Geophysical Research = J. Geophys. Res.
 Journal of Geophysical Research, [Atmospheres] = J. Geophys. Res. Atmos.