additional formatting and phrasing updates to CONTRIBUTING.md

CONTRIBUTING.md

@@ -5,31 +5,32 @@ Below are guidelines for adding new files to geocat-datafiles:
 
 # Policies for adding new files
 
-1. Knowing that Github allows a maximum size of 100 MB for a single file upload, small(ish) example 
-data sets - on the order of a few MBs - should be chosen for testing or examples. 
+1. Knowing that Github allows a maximum size of 100 MB for a single file upload, small(ish) example
+   data sets - on the order of a few MBs - should be chosen for testing or examples. 
 
-    - Contributors should endeavor to use existing data sets before considering contributing new ones. 
-    - However, if an existing data set simply won’t do the job, new ones may certainly be added. 
-    - Contributors should ensure that contributed files are stripped of irrelevant variables that unnecessarily 
-    take up space. 
+    - Contributors should endeavor to use existing data sets before considering contributing new ones. However,
+      if an existing data set simply won’t do the job, new ones may be added. 
+    - Contributors should ensure that contributed files are stripped of irrelevant variables that unnecessarily
+      take up space. 
 
-2. Contributors of data sets are responsible for ensuring that they have appropriate permissions for 
-redistribution of any contributed data sets.
+3. Contributors of data sets are responsible for ensuring that they have appropriate permissions for
+   redistribution of any contributed data sets.
 
 
-# Adding new data files to the ``geocat-datafiles`` repo
+# Adding new data files to the GeoCAT-datafiles repository
 
-1. Add files to appropriate subdirectory based on file format, e.g. “`netcdf_files`”, etc
+1. Add files to appropriate subdirectory based on file format, e.g. “`netcdf_files`”, etc.
 
-2. Generate new “registry.txt” by running the command:
+2. Generate a new “registry.txt” by running the command:
 
     `python create_registry.py`
 
-    - This command requires [PyPi's Pooch framework](https://pypi.org/project/pooch/) to be installed. 
-
-        - Please follow the [installation instructions](https://github.com/NCAR/geocat-datafiles/INSTALLATION.md) 
-        to ensure an accurate conda environment is installed and activated for GeoCAT-datafiles, including 
-        [PyPi's Pooch framework](https://pypi.org/project/pooch/).
+    - This command requires [Pooch](https://pypi.org/project/pooch/) to be installed. Please follow the
+      [installation instructions](https://github.com/NCAR/geocat-datafiles/INSTALLATION.md) to ensure your active
+      conda environment includes the required packages.
+
+3. Open a pull request with these changes on [NCAR/geocat-datafiles](https://github.com/NCAR/geocat-datafiles). Once
+   the pull request is merged, the files should be available. No package release is required.
 
 **Note**: Python package in `$GEOCATDATAFILES/src` directory, very minimal maintenance required, does not need to be 
 updated when a new file is added.