tags for multivariate_marker_plot, geo_demo, and subplots_demo

Author: kakun45

galleries/examples/lines_bars_and_markers/multivariate_marker_plot.py

@@ -50,6 +50,7 @@
 # .. tags::
 #
 #    component: marker
-#    styling: color
+#    styling: color,
+#    styling: shape
 #    level: beginner
 #    purpose: fun

galleries/examples/subplots_axes_and_figures/geo_demo.py

@@ -45,4 +45,5 @@
 # .. tags::
 #
 #    plot-type: specialty
+#    component: projection
 #    domain: cartography

galleries/examples/subplots_axes_and_figures/subplots_demo.py

@@ -213,8 +213,10 @@
 # %%
 # .. tags::
 #
-#    component: subplot
-#    plot-type: line
+#    component: subplot,
+#    component: axes,
+#    component: axis
+#    plot-type: line,
 #    plot-type: polar
 #    level: beginner
 #    purpose: showcase