diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5b6a065
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.Rproj.user
+.Rhistory
+.RData
+.Ruserdata
diff --git a/Exercises/2_Simple_Package/DESCRIPTION b/Exercises/2_Simple_Package/DESCRIPTION
index ff5de27..c08cc23 100644
--- a/Exercises/2_Simple_Package/DESCRIPTION
+++ b/Exercises/2_Simple_Package/DESCRIPTION
@@ -9,7 +9,6 @@ Description: Lee-Seung non-negative matrix factorization for gene-by-sample
 License: MIT + file LICENSE
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 7.3.2
 Depends: R (>= 4.1.0)
 Suggests: 
     knitr,
@@ -18,3 +17,4 @@ Suggests:
 VignetteBuilder: knitr
 Config/testthat/edition: 3
 Config/Needs/website: r-lib/pkgdown
+Config/roxygen2/version: 8.0.0
diff --git a/Exercises/2_Simple_Package/man/bionmf-package.Rd b/Exercises/2_Simple_Package/man/bionmf-package.Rd
index ec8394f..d843579 100644
--- a/Exercises/2_Simple_Package/man/bionmf-package.Rd
+++ b/Exercises/2_Simple_Package/man/bionmf-package.Rd
@@ -11,5 +11,10 @@ Lee-Seung non-negative matrix factorization for gene-by-sample expression matric
 \author{
 \strong{Maintainer}: Adrien Osakwe \email{adrien.osakwe@mail.mcgill.ca}
 
+Authors:
+\itemize{
+  \item Adrien Osakwe \email{adrien.osakwe@mail.mcgill.ca}
+}
+
 }
 \keyword{internal}
diff --git a/Exercises/3_Actions_Package/R/nmf_fit.R b/Exercises/3_Actions_Package/R/nmf_fit.R
index c6ad331..7e70122 100644
--- a/Exercises/3_Actions_Package/R/nmf_fit.R
+++ b/Exercises/3_Actions_Package/R/nmf_fit.R
@@ -5,7 +5,7 @@
 #' @param seed Optional random seed for reproducibility.
 #' @return List with components `W` and `H`.
 #' @keywords internal
-initialize_nmf <- function(V, k, seed = NULL) {
+initialize_nmfx <- function(V, k, seed = NULL) {
   if (!is.null(seed)) {
     set.seed(seed)
   }