adding references in academic cv in "longtable class"

I am trying to write my CV using the template given in

https://www.overleaf.com/latex/templates/academic-cv-template/xykxmjmkxxjm

Please see the code below:

% Set document class and font size
documentclass[letterpaper, 11pt]{article}
usepackage[utf8]{inputenc}

% Package imports
usepackage{setspace, longtable, graphicx, hyphenat, hyperref, fancyhdr, ifthen, everypage, enumitem, amsmath, setspace}

% --- Page layout settings ---

% Set page margins
usepackage[left=1in, right=1in, bottom=0.7in, top=0.7in]{geometry}

% Set line spacing
renewcommand{baselinestretch}{1.15}

% --- Page formatting ---

% Set link colors
usepackage[dvipsnames]{xcolor}
hypersetup{colorlinks=true, linkcolor=RoyalBlue, urlcolor=RoyalBlue}

% Set font to Libertine, including math support
usepackage{libertine}
usepackage[libertine]{newtxmath}

% Remove page numbering
pagenumbering{gobble}

% --- Document starts here ---

begin{document}

% Name and date of last update to this document
noindent{Huge{Your name here}
hfill{itfootnotesize Updated today}}

% --- Contact information and other items ---

vspace{0.5cm} 
begin{center}
begin{tabular}{lll}
% Line 1: Email, GitHub, office location
textbf{Email}: [email protected]      &
hspace{0.55in} textbf{GitHub}: //github-username    &
hspace{0.4in}  textbf{Office}: Your Building 101 

% Line 2: Phone number, LinkedIn, citizenship
textbf{Phone}: (314) 159-2654   & 
hspace{0.55in} textbf{LinkedIn}: //LinkedIn-URL   & 
hspace{0.4in} textbf{Citizenship}: Country 
end{tabular}
end{center}

% --- Start the two-column table storing the main content ---

% Set spacing between columns
setlength{tabcolsep}{8pt}

% Set the width of each column
begin{longtable}{p{1.3in}p{4.8in}}


color{OliveGreen}{Service and outreach}
& textbf{Title of organization you were in} hfill Month Year -- Month Year 
& Description of your responsibilities. Integer pretium semper justo. Proin risus. Aliquam volutpat est vel massa. 
& 



end{longtable}
end{document}

There is no option to add reference letter writers’ details.

Can someone kindly tell me how to add those details?

I want to make it look like the following:

I was trying to use hspace to put appropriate gap but it is not aligning well.

Any help is appreciated.

% Set document class and font size
documentclass[letterpaper, 11pt]{article}
usepackage[utf8]{inputenc}

% Package imports
usepackage{setspace, longtable, graphicx, hyphenat, hyperref, fancyhdr, ifthen, everypage, enumitem, amsmath, setspace}
usepackage{array}
% --- Page layout settings ---

% Set page margins
usepackage[left=1in, right=1in, bottom=0.7in, top=0.7in]{geometry}

% Set line spacing
renewcommand{baselinestretch}{1.15}

% --- Page formatting ---

% Set link colors
usepackage[dvipsnames]{xcolor}
hypersetup{colorlinks=true, linkcolor=RoyalBlue, urlcolor=RoyalBlue}

% Set font to Libertine, including math support
usepackage{libertine}
usepackage[libertine]{newtxmath}

% Remove page numbering
pagenumbering{gobble}

% --- Document starts here ---

begin{document}

% Name and date of last update to this document
noindent{Huge{Your name here}
hfill{itfootnotesize Updated today}}

% --- Contact information and other items ---

vspace{0.5cm} 
begin{center}
begin{tabular}{lll}
% Line 1: Email, GitHub, office location
textbf{Email}: [email protected]      &
hspace{0.55in} textbf{GitHub}: //github-username    &
hspace{0.4in}  textbf{Office}: Your Building 101 

% Line 2: Phone number, LinkedIn, citizenship
textbf{Phone}: (314) 159-2654   & 
hspace{0.55in} textbf{LinkedIn}: //LinkedIn-URL   & 
hspace{0.4in} textbf{Citizenship}: Country 
end{tabular}
end{center}

% --- Start the two-column table storing the main content ---

% Set spacing between columns
setlength{tabcolsep}{8pt}

% Set the width of each column
begin{longtable}{>{color{OliveGreen}}p{1.3in}p{4.8in}}


Service and outreach
& textbf{Title of organization you were in} hfill Month Year -- Month Year 
& Description of your responsibilities. Integer pretium semper justo. Proin risus. Aliquam volutpat est vel massa. 
& 

References
& begin{tabular*}{hsize}[t]{@{extracolsep{fill}}ll} Name 1 & Name 2 Address 1 & Address 2  email address 1 & email address 2 end{tabular*}
 




end{longtable}
end{document}