pca and biplot. How i can insert the name of a variable on point and not the number?

Hy, I need an help with PCA code.
This is my dataset and I should run a PCA.

The code is:


mydata$Comune <- rownames(mydata)
mydata$Comune <- paste(mydata$Comune, mydata$Comune, sep="_")
rownames(mydata) <- mydata$Comune
mydata<- mydata[,2:7]

pca <- prcomp(mydata, center=T, scale. = T)

col.ind = "cos2", # Color by the quality of representation
gradient.cols = c("#00AFBB", "#E7B800", "#FC4E07"),
repel = TRUE)

The plot is:

how could i insert the names of the observations instead of the numbers in the plot? I dont want the point with number, I want the name of "Comune" variable on the point


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