Update install & config.example with some error checking

src/config.example

@@ -1,3 +1,16 @@
+######################################################################
+## SET THE FOLLOWING TO "TRUE" WHEN YOU HAVE CONFIGURED THIS FILE ####
+######################################################################
+CONFIGURED="FALSE"
+
+if [ "${CONFIGURED}" != "TRUE" ]; then
+    echo "Config file has not been set up."
+    exit 1
+fi
+
+# Beginning of configuration:
+############################# 
+
 #BORG="/usr/bin/borg"
 
 SYSTEM_NAME="name-of-computer"

src/install

@@ -5,9 +5,20 @@ chown root. /usr/local/bin/borgwrapper
 chmod 750 /usr/local/bin/borgwrapper
 
 if [ ! -d /etc/borgwrapper/ ]; then
-    mkdir /etc/borgwrapper/config
+    mkdir /etc/borgwrapper
 fi
 
-cp -i config /etc/borgwrapper/config
+if [ ! -e ./config ]; then
+    echo "Please rename \"config.example\" to \"config\""
+    echo "And make sure to update with your settings before running \"install\" again!"
+    exit 1
+fi
+
+cp -i ./config /etc/borgwrapper/config
 chown root. /etc/borgwrapper/config
 chmod 600 /etc/borgwrapper/config
+
+echo
+echo "Please edit \"/etc/borgwrapper/config\" to make changes to configuration."
+echo "Read \"README.md\" for more information."
+echo