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diff --git a/README.md b/README.md
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 ## vaccine
 
-[mRNA1273](https://en.wikipedia.org/wiki/MRNA-1273)
-[Sputnik V](https://en.wikipedia.org/wiki/Sputnik_V_COVID-19_vaccine)
-[Pfizer](https://en.wikipedia.org/wiki/Pfizer%E2%80%93BioNTech_COVID-19_vaccine)
+- [mRNA1273](https://en.wikipedia.org/wiki/MRNA-1273)
+- [Sputnik V](https://en.wikipedia.org/wiki/Sputnik_V_COVID-19_vaccine)
+- [Pfizer](https://en.wikipedia.org/wiki/Pfizer%E2%80%93BioNTech_COVID-19_vaccine)
 
 
 ### References