Added bibliography

bib/sites.bib

@@ -0,0 +1,29 @@
+@misc{overleaf,
+	title = "Page size and margins",
+	url = "https://www.overleaf.com/learn/latex/Page_size_and_margins"
+}
+
+@misc{stexc,
+   title={How to center the table in Latex},
+   author={\TeX{} StackExchange},
+   howpublished="\url{https://tex.stackexchange.com/questions/162462/how-to-center-the-table-in-latex}",
+   month={Feb},
+   year={2014}   
+}
+
+@book{van2012latex,
+  title={LATEX and Friends},
+  author={Van Dongen, Marc RC},
+  year={2012},
+  publisher={Springer Science \& Business Media}
+}
+
+@article{greenwade93,
+    author  = "George D. Greenwade",
+    title   = "The {C}omprehensive {T}ex {A}rchive {N}etwork ({CTAN})",
+    year    = "1993",
+    journal = "TUGBoat",
+    volume  = "14",
+    number  = "3",
+    pages   = "342--351"
+}

lbol.tex

@@ -12,6 +12,9 @@
 % Where are our images?
 \graphicspath{{images/}}
 
+% Include bibliography in TOC without numbering
+\usepackage[nottoc]{tocbibind}
+
 % Let's set this as a half-letter sized sheet
 \usepackage{geometry}
 \geometry{
@@ -869,4 +872,11 @@ In particular with \LaTeX{}, it can help if you create an MWE (minimal working e
 
 \section{\texttt{\}\%} is Your Best Friend}
 
+
+sample text~\cite{greenwade93} ~\cite{stexc}
+
+\begin{flushleft}
+\bibliographystyle{plain}
+\bibliography{bib/sites}
+\end{flushleft}
 \end{document}