Update README.md

README.md

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 ## Detecting contaminants in compost fertilizers.
 **Paper:** [Detection of Foreign Objects in Compost Fertilizer](https://ieeexplore.ieee.org/document/11081483)
 
-This is a collection of datasets containing images of compot fertilizer or digestate that has been contamiated with small foreign objects, such as pieces of plastic foils,
+This is a collection of datasets containing images of compost fertilizer or digestate that has been contamiated with small foreign objects, such as pieces of plastic foils,
 shards of hardplastic, pieces of glass, aluminum, etc. 
 
 The images always contain a background material of sieves and clean compost fertilizer or digestate. Taken directly from a variety of composting plants in switzerland.