Powerlevel10k tweak to add OS version number to prompt

.p10k.zsh

# STEP1:  in ~/.p10k.zsh, find and alter:
  typeset -g POWERLEVEL9K_LEFT_PROMPT_ELEMENTS=(
  os_icon
  os_version # ADD THIS LINE
  ...
  )
  
# STEP2:  Still in ~/.p10k.zsh, after the `typeset` you just edited, 
#         add the following:

  function prompt_os_version() {
    p10k segment -t $(lsb_release -r | awk '{print $2}') -f white
###
# alternative method:
#    while IFS= read -r line; do
#      key=${line%%=*}
#      value=${line#*=}
#      if [[ "$key" == "VERSION_ID" ]]; then
#        p10k segment -e -t "$value" -f white
#      fi
#    done < "/etc/os-release"
###
}

  function instant_prompt_os_version() {
#   prompt_os_version
  }

# STEP3:  reload shell