updated readme

README.md

@@ -140,7 +140,7 @@ Transform (STFT) of the audio data, searches for narrow peaks, and reports a boa
 peaks are found. The peak search algorithm is similar, though not identical, to the one described in 
 [this paper](https://doi.org/10.1111/2041-210X.13245). 
 
-The performance of the FAV detector can be optimized by adjustable the parameters found in the [fav.json](detectors/fav.json) 
+The performance of the FAV detector can be optimized by adjusting the parameters found in the [fav.json](detectors/fav.json) 
 configuration files. While this file contains many parameters, the most relevant are the `threshold` parameter (found in 
 the `fav_config` section) and the `height` parameter (found in the `detect_config` section). The former determines how sharp and tall 
 a frequency peak must be to be counted as a peak, while the latter determines how many such peaks must be present at given