chore: clarify that its manually expensive to compile some DCAT3 properties

Author: jqnatividad

README.md

@@ -38,7 +38,7 @@ type, is_ascii, sum, min/max, range, sort_order, sortiness, min_length, max_leng
     * `LAT_FIELD` and `LON_FIELD` - the inferred lat/long columns
     * `NO_LAT_LONG_FIELDS` (bool)
 
-Beyond the extensive list of built-in Jinja2 [filters](https://jinja.palletsprojects.com/en/stable/templates/#list-of-builtin-filters)/[functions](https://jinja.palletsprojects.com/en/stable/templates/#list-of-global-functions), DP+ also supports an extensive list of additional [custom filters/functions](https://github.com/dathere/datapusher-plus/blob/607e7c5e5d75c5dc7ac55d684522c7972bc33d1d/ckanext/datapusher_plus/jinja2_helpers.py#L171). Several of these helper functions make it trivially easy to calculate [DCAT 3](https://doi-do.github.io/dcat-us/) recommended, optional properties that would ordinarily be too expensive to compile (e.g `dcat-us:GeographicBoundingBox`, `dcat:temporalResolution`, `dcat:startDate`, `dcat:endDate`, etc. ).
+Beyond the extensive list of built-in Jinja2 [filters](https://jinja.palletsprojects.com/en/stable/templates/#list-of-builtin-filters)/[functions](https://jinja.palletsprojects.com/en/stable/templates/#list-of-global-functions), DP+ also supports an extensive list of additional [custom filters/functions](https://github.com/dathere/datapusher-plus/blob/607e7c5e5d75c5dc7ac55d684522c7972bc33d1d/ckanext/datapusher_plus/jinja2_helpers.py#L171). Several of these helper functions make it trivially easy to calculate [DCAT 3](https://doi-do.github.io/dcat-us/) recommended, optional properties that would ordinarily be too painstaking to manually compile (e.g `dcat-us:GeographicBoundingBox`, `dcat:temporalResolution`, `dcat:startDate`, `dcat:endDate`, etc. ).
 
 There are two Formula types that are indicated by adding these keywords to the scheming yaml file:
  * `formula` - the formula will be evaluated at resource creation/update time and the result is assigned to the corresponding package/resource field immediately.