Update README.md

README.md

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 ---
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+
+---
+## Example API calls
+
+`https://givingtuesday-annotated-990.hf.space/eins/?staff_gender_staff_count=5&staff_gender_male_fraction=0.30&sdg=sdg3`
+
+  - returns all EINs from 2023 TAXYEAR that reported at least 5 named staff leaders, were less than 30% male, and that focused on SDG-3: "Ensure healthy lives and promote well-being for all at all ages"
+
+`https://givingtuesday-annotated-990-data.hf.space/eins/?organization_supports_elderly=1&organization_supports_elderly_conf=0.9&sdg=sdg4`
+  - returns EINs from 2023 TAXYEAR that work with the elderly, (but only those with a 0.9 confidence out of 0-1.0), and who work on SDG-4 Education.
+
+`https://givingtuesday-annotated-990-data.hf.space/eins/?organization_supports_elderly=1&organization_supports_elderly_conf=0.9&org_engages_in_advocacy=1&org_engages_in_advocacy_conf=0.67&cause_area_human_services=0.1`
+ - returns EINs from 2023 TAXYEAR that support elderly (conf 0.9), engage in advocacy (conf 0.67), and work in NTEE area human services (conf 0.1)