Apply suggestions from code review

Co-authored-by: Yao Jiayuan <coreman.seism@gmail.com>

Author: Meghan Jones

doc/changes.md

@@ -37,12 +37,12 @@
 * Allow pygmt.which to accept a list of filenames as input ([#1312](https://github.com/GenericMappingTools/pygmt/pull/1312))
 * Refactor blockm* to use virtualfile_from_data and improve i/o ([#1280](https://github.com/GenericMappingTools/pygmt/pull/1280))
 * Refactor grdtrack to use virtualfile_from_data and improve i/o to pandas.DataFrame ([#1189](https://github.com/GenericMappingTools/pygmt/pull/1189))
-* Let Figure.savefig recommend .eps or .pdf when .ps extension is used ([#1307](https://github.com/GenericMappingTools/pygmt/pull/1307))
-* Improve Figure.show for displaying previews in Jupyter notebooks and external viewers ([#529](https://github.com/GenericMappingTools/pygmt/pull/529))
 * Add parameters to histogram ([#1249](https://github.com/GenericMappingTools/pygmt/pull/1249))
 * Add alias 'aspatial' to methods blockmedian, info, plot, plot3d, surface ([#1090](https://github.com/GenericMappingTools/pygmt/pull/1090))
 * Add alias 'registration' to methods blockmean, info, grdfilter, surface ([#1089](https://github.com/GenericMappingTools/pygmt/pull/1089))
 * Add incols to COMMON_OPTIONS, blockmean, and blockmedian ([#1300](https://github.com/GenericMappingTools/pygmt/pull/1300))
+* Improve Figure.show for displaying previews in Jupyter notebooks and external viewers ([#529](https://github.com/GenericMappingTools/pygmt/pull/529))
+* Let Figure.savefig recommend .eps or .pdf when .ps extension is used ([#1307](https://github.com/GenericMappingTools/pygmt/pull/1307))
 
 ### Deprecations
 
@@ -52,22 +52,22 @@
 * Figure.plot3d: Deprecate parameter "sizes" to "size" (remove in v0.6.0) ([#1258](https://github.com/GenericMappingTools/pygmt/pull/1258))
 * Figure.plot3d: Deprecate parameter "columns" to "incols" (remove in v0.6.0) ([#1040](https://github.com/GenericMappingTools/pygmt/pull/1040))
 * Figure.rose: Deprecate parameter "columns" to "incols" (remove in v0.6.0) ([#1306](https://github.com/GenericMappingTools/pygmt/pull/1306))
-* Raise a warning for the use of short-form parameters when long-forms are available ([#1316](https://github.com/GenericMappingTools/pygmt/pull/1316))
 * NEP29: Set minimum required versions to NumPy 1.17+ and Python 3.7+ ([#1074](https://github.com/GenericMappingTools/pygmt/pull/1074))
+* Raise a warning for the use of short-form parameters when long-forms are available ([#1316](https://github.com/GenericMappingTools/pygmt/pull/1316))
 
 ### Bug Fixes
 
 * Allow pandas.Series inputs to fig.histogram and pygmt.info ([#1329](https://github.com/GenericMappingTools/pygmt/pull/1329))
+* Explicitly use netcdf4 engine in xarray.open_dataarray to read grd files ([#1264](https://github.com/GenericMappingTools/pygmt/pull/1264))
 * Let Figure.savefig support filenames with spaces ([#1116](https://github.com/GenericMappingTools/pygmt/pull/1116))
 * Let Figure.show(method='external') work well in Python scripts ([#1062](https://github.com/GenericMappingTools/pygmt/pull/1062))
-* Explicitly use netcdf4 engine in xarray.open_dataarray to read grd files ([#1264](https://github.com/GenericMappingTools/pygmt/pull/1264))
 
 ### Documentation
 
-* Specify rectangle's width and height via style parameter in multi-parameter symbols example ([#1325](https://github.com/GenericMappingTools/pygmt/pull/1325))
-* Update the inset gallery example ([#1287](https://github.com/GenericMappingTools/pygmt/pull/1287))
 * Add histogram gallery example ([#1272](https://github.com/GenericMappingTools/pygmt/pull/1272))
 * Add a gallery example showing individual basic geometric symbols ([#1211](https://github.com/GenericMappingTools/pygmt/pull/1211))
+* Specify rectangle's width and height via style parameter in multi-parameter symbols example ([#1325](https://github.com/GenericMappingTools/pygmt/pull/1325))
+* Update the inset gallery example ([#1287](https://github.com/GenericMappingTools/pygmt/pull/1287))
 * Add categorical colorbars for plot, plot3d and line colors gallery examples ([#1267](https://github.com/GenericMappingTools/pygmt/pull/1267))
 * Apply NIST SI unit convention to some gallery examples ([#1194](https://github.com/GenericMappingTools/pygmt/pull/1194))
 * Use colorblind-friendly colors in the scatter plots gallery example ([#1013](https://github.com/GenericMappingTools/pygmt/pull/1013))
@@ -79,12 +79,12 @@
 * Standardize docstrings for table-like inputs ([#1186](https://github.com/GenericMappingTools/pygmt/pull/1186))
 * Clarify that the "transparency" parameter in plot/plot3d/text can be 1d array  ([#1265](https://github.com/GenericMappingTools/pygmt/pull/1265))
 * Clarify that the "color" parameter in plot/plot3d can be 1d array ([#1260](https://github.com/GenericMappingTools/pygmt/pull/1260))
-* Add alias name convention to CONTRIBUTING.md ([#1256](https://github.com/GenericMappingTools/pygmt/pull/1256))
-* Remove the "full test" section from installation guide ([#1206](https://github.com/GenericMappingTools/pygmt/pull/1206))
 * Clarify interplay of spacing and per_column in info ([#1127](https://github.com/GenericMappingTools/pygmt/pull/1127))
+* Remove the "full test" section from installation guide ([#1206](https://github.com/GenericMappingTools/pygmt/pull/1206))
 * Clarify position of deprecate_parameter decorator to be above use_alias ([#1302](https://github.com/GenericMappingTools/pygmt/pull/1302))
-* Move contributing guide details to website and rename two sections ([#1335](https://github.com/GenericMappingTools/pygmt/pull/1335))
 * Add guidelines for managing issues to maintenance.md ([#1301](https://github.com/GenericMappingTools/pygmt/pull/1301))
+* Add alias name convention to CONTRIBUTING.md ([#1256](https://github.com/GenericMappingTools/pygmt/pull/1256))
+* Move contributing guide details to website and rename two sections ([#1335](https://github.com/GenericMappingTools/pygmt/pull/1335))
 * Update the check_figures_equal testing section in CONTRIBUTING.md  ([#1108](https://github.com/GenericMappingTools/pygmt/pull/1108))
 * Revise Pull Request review process in CONTRIBUTING.md ([#1119](https://github.com/GenericMappingTools/pygmt/pull/1119))