Added VIM tools, and help pages to all scripts missing one

reporting/doi2bib

@@ -1,8 +1,11 @@
 #!/bin/bash
 
-if [ -z "$1" ]
-then echo Expecting doi code
-     exit
-fi
+function helpexit() {
+    echo Print out bibtex entry from a DOI.
+    echo Give DOI code as the argument
+    exit
+}
+[[ -z "$1" ]] && helpexit
+[[ "$1" = "-h" ]] && helpexit
 
 curl -LH "Accept: text/bibliography; style=bibtex" "http://dx.doi.org/$1"

reporting/markslider

@@ -10,8 +10,13 @@ function exit_reset {
     setterm -cursor on
     exit
 }
+function short_help() {
+    echo MarkSlider, the markdown syntax slideshow engine
+    echo Start without arguments to view the demo
+    exit
+}
 [ -z "$1" ] && display_self 
-[ "$1" = "-h" ] && display_self 
+[ "$1" = "-h" ] && short_help
 
 [ -f "$1" ] || {
     echo Cannot find file: $1