Update session3.md

session3.md

@@ -148,7 +148,12 @@ Now we need to build the package.
 
 If build dependencies are met, then it will generate .deb file.
 
-Note: You can install build dependencies using
+Install the package using apt or dpkg. apt will resolve dependencies automatically.
+
+    sudo apt install ./bc_1.07.1-2_amd64.deb 
+
+
+**Note**: You can install build dependencies of a package using
 
     apt build-dep <package>