update citation

Author: erdogant

CITATION.cff

@@ -20,6 +20,6 @@ keywords:
 license: "MIT"
 message: "If you use this software, please cite it using these metadata."
 repository-code: "https://erdogant.github.io/findpeaks"
-title: "findpeaks is for the detection of peaks and valleys in a 1D vector and 2D array (image)."
+title: "Findpeaks: The detection of peaks and valleys in a 1D vector and 2D arrays."
 version: "2.3.1"
 ...