inserted a description on how to create an alias for building .tex

README.md

@@ -12,3 +12,10 @@ Build the container. This may take some seconds, as `tex-full` is rather huge.
 Then run the following command:
 
 `sudo docker run -v "$(pwd)":/tex -e TARGET=<filename.tex> texbox`
+
+### alias
+
+Insert this alias into your `.bashrc`, `.zshrc`, or any corresponding file in order to simply build `.tex` files using the `latexbuild <filename.tex>` command:
+
+`alias "latexbuild"='function _latexbuild(){sudo docker run -v "$(pwd)":/tex -e TARGET="$1" texbox;};_latexbuild'
+`