update README

Author: Visorbearer

README.Rmd

@@ -36,7 +36,7 @@ Included in `PFW` are tools for taxonomic rollup, filtering by survey characteri
 `PFW` can be installed using:
 
 ```{r, eval = FALSE}
-install.packages("PFW", repos = c('https://ropensci.r-universe.dev', 'https://cloud.r-project.org'))
+install.packages("PFW")
 ```
 
 ## Vignette

README.md

@@ -46,7 +46,7 @@ alt="FeederWatch locations from 1989-2020." />
 `PFW` can be installed using:
 
 ``` r
-install.packages("PFW", repos = c('https://ropensci.r-universe.dev', 'https://cloud.r-project.org'))
+install.packages("PFW")
 ```
 
 ## Vignette