Fix incorrect ylabel in catalytic_combustion.py

- Corrects a typo where only Temperature was plotted but the axis was labeled as heat release rate.
- Modifies the plot to use a single axis for Temperature.
- Adds unique window titles (num) to figures to avoid identical Figure 1 names.
- Added Mohamed Ahmed to AUTHORS.md.

Closes #2154

- **Limited use of generative AI.** I fixed the issue following the suggested solution and used AI to assist in refining it.

Author: hazalkoom

AUTHORS.md

@@ -8,6 +8,7 @@ update, please report on Cantera's
 [Github issue tracker](https://github.com/Cantera/cantera/issues).
 
 - **Rounak Agarwal** [@agarwalrounak](https://github.com/agarwalrounak)
+- **Mohamed Ahmed** [@hazalkoom](https://github.com/hazalkoom) - Mansoura University
 - **David Akinpelu** [@DavidAkinpelu](https://github.com/DavidAkinpelu)
 - **Halla Ali** [@hallaali](https://github.com/hallaali)
 - **Emil Atz** [@EmilAtz](https://github.com/EmilAtz)

ext/yaml-cpp

@@ -17,6 +17,7 @@
 """
 
 import numpy as np
+
 import matplotlib.pyplot as plt
 import cantera as ct
 
@@ -144,16 +145,15 @@
 # %%
 # Temperature Profile
 # -------------------
-fig, ax = plt.subplots()
+fig, ax = plt.subplots(num="Temperature Profile")
 ax.plot(sim.grid, sim.T, color='C3')
-ax.set_ylabel('heat release rate [MW/m³]')
-ax.set(xlabel='distance from inlet [m]')
+ax.set(xlabel='distance from inlet [m]', ylabel='temperature [K]')
 plt.show()
 
 # %%
 # Major Species Profiles
 # ----------------------
-fig, ax = plt.subplots()
+fig, ax = plt.subplots(num="Major Species Profiles")
 major = ('O2', 'CH4', 'H2O', 'CO2')
 states = sim.to_array()
 ax.plot(states.grid, states(*major).X, label=major)