Update central-asia-seismic-vulnerability-curves.md

_datasets/central-asia-seismic-vulnerability-curves.md

@@ -7,7 +7,7 @@ creator:
 dataset_id: CA_SFRARR_EQ_vuln
 description: Seismic vulnerability model for buildings, infrastructure, and population.
 details: 'Data from the Strengthening Financial Resilience and Accelerating Risk Reduction
-  in Central Asia program (https://www.gfdrr.org/en/program/SFRARR-Central-Asia).
+  in Central Asia program (https://www.gfdrr.org/en/program/SFRARR-Central-Asia).'
 exposure: null
 hazard: null
 license: CC-BY-SA-4.0
@@ -25,7 +25,7 @@ purpose: Regional risk modelling. These data have been derived on a regional sca
   detailed history and hazard information is required to perform such hazard and risk
   modelling, particularly were applied to dimension mitigation structures or strategies
 resources:
-- coordinate_system: None
+- coordinate_system: null
   description: This file (available as JSON via API) contains four sheets named "Residential",
     "Non-residential", "Infrastructure" and "Human Loss". In each sheet column A defines
     the IM values in terms of PGA [g] and the vulnerability class is defined in the