diff --git a/README.Rmd b/README.Rmd
index de9d710d..8043ca17 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -59,7 +59,7 @@ head(chagas2012, 5)
 
 The function `prepare_serodata` will prepare the entry data for the use of the modelling module; this function computes the sample size, the years of birth and the binomial confidence interval for each age group in the provided dataset. A visualisation of the prepared seroprevalence data can be obtained using the function plot_seroprev:
 
-```{r data_test, include = TRUE, out.fig.height="30%", out.width="50%", fig.align="center", message=FALSE}
+```{r data_test, include = TRUE, out.fig.height="30%", out.width="50%", fig.align="center", message=FALSE, warning=FALSE}
 serodata_test <- prepare_serodata(chagas2012)
 plot_seroprev(serodata_test, size_text = 15)
 ```
@@ -73,17 +73,25 @@ Contributors to the project include:
 
 -   [Nicolás Torres](https://github.com/ntorresd) (author)
 
--   [Benjamin Lambert](https://ben-lambert.com/about/) (author)
+-   [Ben Lambert](https://ben-lambert.com/about/) (author)
 
 -   [Pierre Nouvellet](https://github.com/pnouvellet) (author)
 
 -   [Geraldine Gómez](https://github.com/megamezl) (contributor)
 
+-   [Jaime A. Pavlich-Mariscal](https://github.com/jpavlich) (contributor)
+
+-   [Miguel Gamez](https://github.com/megamezl) (contributor)
+
 -   [Hugo Gruson](https://github.com/Bisaloo) (contributor)
 
 -   [David Santiago Quevedo](https://github.com/davidsantiagoquevedo) (contributor)
 
--   [Jaime A. Pavlich-Mariscal](https://github.com/jpavlich) (contributor)
+-   [Everlyn Kamau](https://github.com/ekamau) (contributor)
+
+-   [Richard Creswell](https://github.com/rccreswell) (contributor)
+
+-   [Sumali Bajaj](https://github.com/sumalibajaj) (contributor)
 
 ## Package vignettes
 
diff --git a/README.md b/README.md
index 2c5c60d8..a3b8202e 100644
--- a/README.md
+++ b/README.md
@@ -29,8 +29,7 @@ methods are outlined in ([Cucunubá et al. 2017](#ref-cucunubá2017)) and
 Models](https://epiverse-trace.github.io/serofoi/articles/foi_models.html)
 for further details)
 
-***serofoi*** is developed at [Pontificia Universidad
-Javeriana](https://www.javeriana.edu.co/inicio) as part of the [Epiverse
+***serofoi*** is part of the [Epiverse
 Initiative](https://data.org/initiatives/epiverse/).
 
 ## Installation
@@ -82,18 +81,26 @@ Contributors to the project include:
 
 - [Nicolás Torres](https://github.com/ntorresd) (author)
 
-- [Benjamin Lambert](https://ben-lambert.com/about/) (author)
+- [Ben Lambert](https://ben-lambert.com/about/) (author)
 
 - [Pierre Nouvellet](https://github.com/pnouvellet) (author)
 
 - [Geraldine Gómez](https://github.com/megamezl) (contributor)
 
+- [Jaime A. Pavlich-Mariscal](https://github.com/jpavlich) (contributor)
+
+- [Miguel Gamez](https://github.com/megamezl) (contributor)
+
 - [Hugo Gruson](https://github.com/Bisaloo) (contributor)
 
 - [David Santiago Quevedo](https://github.com/davidsantiagoquevedo)
   (contributor)
 
-- [Jaime A. Pavlich-Mariscal](https://github.com/jpavlich) (contributor)
+- [Everlyn Kamau](https://github.com/ekamau) (contributor)
+
+- [Richard Creswell](https://github.com/rccreswell) (contributor)
+
+- [Sumali Bajaj](https://github.com/sumalibajaj) (contributor)
 
 ## Package vignettes
 
diff --git a/man/figures/README-data_test-1.png b/man/figures/README-data_test-1.png
index 921ec944..58455225 100644
Binary files a/man/figures/README-data_test-1.png and b/man/figures/README-data_test-1.png differ