diff --git a/container-README.md b/container-README.md
index 64a12c37..60108f21 100644
--- a/container-README.md
+++ b/container-README.md
@@ -87,103 +87,8 @@ container.
 
 Since the docker commands can be a bit verbose, the included Makefile
 automates some of the frequent steps in the workflow, although it can
-be replaced by shell functions  quite easily;
+be replaced by [a shell function](https://gist.github.com/hlecuanda/78a6a39877c9753230a11c2d8832f4b6)
+quite easily.
 
-```bash
-
-
-function prezto-container () {
-# latest source at https://gist.github.com/hlecuanda/78a6a39877c9753230a11c2d8832f4b6
-
-  local opts withvals
-
-  zmodload zsh/zutil || { <<< 'Requires zparseopts'; false; return }
-
-  [ -z $commands[docker] ] && { <<< 'Requires Docker'; false; return }
-
-  zparseopts -D -E -M -a opts -A withvals - \
-             h=hlp  -help=h              \
-             i:     -image=i             \
-             N:     -name=N              \
-             n      -dry-run=n           \
-             p      -persistant=p        \
-             r      -run=r               \
-                    -zdotdir:            \
-                    -zpreztodir:
-
-  if (( $#hlp == 1 )) ; then
-    <<-USAGE
-    ${0}: create an ephemeral  prezto container using docker
-
-    usage:
-        ${0} [options] -- [addtl-args]
-
-    options:
-        -h, --help           : print this message
-        -p, --persistant     : make a persistant container
-        -N NAME, --name=NAME : set container name to NAME (default: prezto)
-        -n, --dry-run        : see what command would be run without doing so
-        -r 'CMD' --run 'CMD' : run 'CMD' on the container (quote CMD)
-        -i IMG,  --image=IMG : create container from image IMG (default hlecuanda/prezto-dev)
-        -zdotdir=PATH        : use dotfiles from local PATH
-        -zpreztodir          : override default prezto to local PATH
-
-    example:
-        ${0} -n myruncoms -zdotdir=$HOME
-
-       creates an ephemeral container named myruncoms using
-        dotfiles found in ${HOME}
 
-        ${0} -n illbeback  -p
-
-        creates a persistant container named illbeback if such
-        container exists, then startit and attach to it
-
-        ${0} -n ivebeenback -r 'apk add python'
-
-        spins up the a container named ivebeenback, and runs
-        the comand 'apk add python'. the container stops when
-        done.
-
-		USAGE
-  fi
-
-  local image="hlecuanda/prezto-dev"
-  local name="prezto"
-  local persistant="--rm"
-  local zdotdir=""
-  local zpreztodir=""
-  local dockercmd='docker run'
-  local dockerpull=""
-
-  for opt  in ${(k)withvals}
-    case $opt in
-      -i)
-        image="$withvals[-i]" ;;
-      -n)
-        local dryrun="print --" ;;
-      -N)
-        name="$withvals[-n]" ;;
-      -p)
-        persistant="" ;;
-      -zdotdir)
-        zdotdir="-v ${(qq)withvals[-zdotdir]}:/home/prezto/zdotdir -e 'ZDOTDIR=/home/prezto/zdotdir  " ;;
-      -zpreztodir)
-        zpreztodir="-v ${(qq)withvals[-zpreztodir]}:/home/prezto/zpreztodir -e 'ZPREZTODIR=/home/prezto/zpreztodir  " ;;
-    esac
-
-  docker images \
-  | grep prezto-dev \
-  &>>! /dev/null || dockerpull="docker pull $image && "
-
-  dockercmd="$dryrun $dockerpull $dockercmd $persistant -h $name "
-  dockercmd="$dockercmd -name $name $zdotdir $zpreztodir $image"
-
-  cmd=$(echo $dockercmd | tr -s \  )
-
-  ${(z)cmd}
-}
-
-#  vim: set ft=zsh sw=2 tw=0 fdm=manual et :
-```
 hope this turns out to be useful.