chore(DESCRIPTION): update author list

DESCRIPTION

@@ -1,10 +1,10 @@
 Package: iscream
 Title: Integrating Single-Cell Results for Exploring and Analyzing Methylation
 Version: 0.0.0.9000
-Authors@R: person("James", "Eapen",
-    email = "[email protected]",
-    role = c("aut", "cre"),
-    comment = c(ORCID = "0000-0001-6016-3598"))
+Authors@R: c(
+    person("James", "Eapen", email = "[email protected]", role = c("aut", "cre"), comment = c(ORCID = "0000-0001-6016-3598")),
+    person("Jacob", "Morrison", email = "[email protected]", role = c("ctb"), comment = c(ORCID = "0000-0001-8592-4744")),
+    person("Hui", "Shen", email = "[email protected]", role = c("fnd"), comment = c(ORCID = "0000-0001-9767-4084")))
 Description: Fast and memory efficient methylation bed file reader and analyzer.
              It can be used with both bulk and scWGBS data.
 URL: https://huishenlab.github.io/iscream/, https://github.com/huishenlab/iscream/