fix starting h1

docs/20_Checks/check_requirements.md

-# Check_requirements
-
-## Introduction
+## Check_requirements
 
 **check_requirements** is a plugin to run different check to show the ability to run an application. You can these checks
 

docs/20_Checks/check_smartstatus.md

-# Check_smartstatus
-
-## Introduction
+## Check_smartstatus
 
 **check_smartstatus** is a plugin run a smartctl check to verify the disk status of all local harddisks/ ssds.
 

docs/20_Checks/check_snmp_data.md

-# check SNMP data
-
-## Introduction
+## Check SNMP data
 
 **check_snmp_data** is a plugin for fetching performance data with a set of given OIDs.
 

docs/20_Checks/check_snmp_synology.md

-# check SNMP Synology
-
-## Introduction
+## Check SNMP Synology
 
 **check_snmp_data** is a plugin to check the status of a Synology storage using snmp v2 or v3.
 

docs/20_Checks/check_ssl_certs.md

-# Check ssl certs
-
-## Introduction
+## Check ssl certs
 
 **check_ssl_certs** is a plugin to check local certificats.
 

docs/20_Checks/check_systemdunit.md

-# Check Systemd unit
-
-## Introduction
+## Check Systemd unit
 
 This check shows the status of a systemd unit.
 

docs/20_Checks/fix_h1.sh

+#!/bin/bash
+
+tmpfile=/tmp/tmp_myfile_$USER__$$
+
+cd "$( dirname "$0" )"
+
+for f in *.md; do
+    if head "$f" | grep -q "^# "; then
+        echo
+        echo ">>>>> FIX $f"
+        echo
+        cp -p "$f" "$tmpfile"
+
+        if grep -q "^## Introduction" "$f"; then
+            echo "Replace '## Introduction'"
+            sed -i -e "s/^## Introduction.*//" "$tmpfile"
+            head -1 "$f" | tail -1 | grep  "." &&  sed -i -e '2,3d' "$tmpfile"
+
+            # make 1st h1 smaller
+            sed -i -e "0,/^# /{s/^# /## /}" "$tmpfile"
+
+        else
+            echo "Move Headers"
+            if grep "^###### " "$f"; then
+                echo "ABORT: H6 was found that cannot moved to smaller level."
+                exit 1
+            fi
+            for header in "#####" "####" "###" "##" "#"
+            do
+                sed -i -e "s/^$header /#$header /g" "$tmpfile"
+            done
+        fi
+        diff -u --color "$f" "$tmpfile"
+        echo
+        read -p "Apply changes on '$f' [Y/n]? > " apply
+        if [ "$apply" = "" ] || [ "$apply" = "y" ]|| [ "$apply" = "Y" ]; then
+            echo "Applying ..."
+            mv "$tmpfile" "$f"
+        else
+            echo "Keeping current version."
+            rm "$tmpfile"
+        fi
+        sleep 1
+        echo
+        echo
+        echo
+        echo
+        echo
+        echo
+        echo ----------------------------------------------------------------------
+    else
+        echo "OK $f"
+    fi
+done
\ No newline at end of file

docs/20_Checks/zz_template_check_.md

-# check NAME
+## Check NAME
 
-## Introduction
+Script: `check_NAME`
 
-**check_NAME** is a plugin for ...
+It is a plugin for ...
 
 ## Syntax
 

docs/30_Shared_functions/_index.md

+## Shared functions
+
+There is one include script used by all checks:
+[inc_pluginfunctions](inc_pluginfunctions.md)
+

docs/20_Checks/inc_pluginfunctions.md → docs/30_Shared_functions/inc_pluginfunctions.md

-# Shared functions
-
-## Introduction
+## Shared functions
 
 All scripts start with sourcing a shared bash file
 

docs/_index.md

-# IML Checks for Icinga / Nagios
-
-## Introduction
+## IML Checks for Icinga / Nagios
 
 IML - Institute for Medical Education at university in Bern, Switzerland.
 

docs/style.css

 /*
     override css elements of daux.io blue theme
-    version 2024-10-24
+    version 2024-10-31
 */
 :root {
     /* Axels Overrides */
@@ -19,8 +19,9 @@
     --sidebar-background: var(--body-background);
     --sidebar-border-color: none;
     --sidebar-link-active-background: #f0f4f6;
+    --toc--inner-border-color: none;
     /* Axels custom values */
-    --axel_bg-toc: var(--body-background);
+    --axel_bg-toc: #f8fafa;
     --axel_bg-toc-head: #f8f8f8;
     --axel_brand-background: none;
     --axel_brand-pre-background: rgb(255, 0, 51);
@@ -35,8 +36,8 @@
     --axel_h2-hero-bottom: 2px solid #912;
     --axel_h3: #333;
     --axel_h3-bottom: 0px solid #ddd;
-    --axel_h4: #478;
-    --axel_h5: #699;
+    --axel_h4: #666;
+    --axel_h5: #888;
     --axel_hero_bg: #faf8f6;
     --axel_img-border: 2px dashed #ccc;
     --axel_nav-bg: #fcfcfc;
@@ -60,6 +61,7 @@
     --sidebar-background: var(--body-background);
     --sidebar-border-color: none;
     --sidebar-link-active-background: #333;
+    --sidebar-link-color: var(--link-color);
     /* Axels custom values */
     --axel_bg-toc: var(--body-background);
     --axel_bg-toc-head: #333;
@@ -126,19 +128,28 @@ a.Brand {
 
 /* ---------- page content ---------- */
 .s-content {
-    padding-top: 1em;
+    padding-top: 6em;
 }
 
-/* .s-content h1::before{
-    background: #fee;
-    border: 3px double #f00;
+h1::before{color: #aaa;content: 'h1: ';}
+h2::before{color: #aaa;content: 'h2: ';}
+h3::before{color: #aaa;content: 'h3: ';}
+h4::before{color: #aaa;content: 'h4: ';}
+h5::before{color: #aaa;content: 'h5: ';}
+h6::before{color: #aaa;content: 'h6: ';}
+
+h1::before{color: #aaa;content: '';}
+h2::before{color: #888;content: ': : ';}
+h3::before{color: #aaa;content: '> ';}
+h4::before{color: #aaa;content: '_ ';}
+h5::before{color: #aaa;content: 'h5: ';}
+h6::before{color: #aaa;content: 'h6: ';}
+
+.s-content h1::before{
     color: #f00;
     content: 'FEHLER: Keine Überschrift 1 in einer Markdown-Datei für Daux verwenden! Mit H2 beginnen!';
-    display: block;
-    font-size: 50%;
-    padding: 0.3em;
-    margin-bottom: 2em;
-} */
+    content: '!! h1 !! ';
+}
 
 .s-content h1 {
     background: var(--axel_h1-bg);
@@ -159,8 +170,14 @@ a.Brand {
     border-bottom: var(--axel_h2-bottom);
 }
 
-h1:first-of-type {
+.Page__header > h1:first-of-type {
     margin-top: 0em;
+    margin-left: -1em;
+    padding-left: 1em;
+    position: fixed;
+    min-width: 100%;
+    background: var(--body-background);
+    box-shadow: 0 2em 1em var(--body-background);
 }
 
 h2:first-of-type {
@@ -211,6 +228,8 @@ ul.TableOfContents a{
 }
 .s-content pre {
     background: var(--axel_pre-background);
+    border-radius: 0.5em;
+    padding: 1rem;
 }
 
 /* FIX smaller fnt size in tables */
@@ -262,14 +281,6 @@ div.hero h2 {
 }
 
 /* ---------- TOC ---------- */
-@media(min-width:1700px) {
-    .TableOfContentsContainer {
-        position: fixed;
-        right: 2em;
-        top: 1em;
-        height: 96%;
-    }
-}
 
 .TableOfContentsContainer {
     background-color: var(--axel_bg-toc);
@@ -279,9 +290,11 @@ div.hero h2 {
 .s-content .TableOfContentsContainer h4 {
     background-color: var(--axel_bg-toc-head);
     border-top-left-radius: 1em;
+    border-bottom: 2px solid var(--axel_bg-toc-bottom-border);
     font-size: 1.1em;
     margin: 0;
     padding: 0.3em;
+    display: none;
 }
 
 .TableOfContentsContainer__content {
@@ -300,6 +313,16 @@ ul.TableOfContents ul {
     text-decoration: underline;
 }
 
+@media(min-width:1700px) {
+    .TableOfContentsContainer {
+        background: none;
+        position: fixed;
+        right: 2em;
+        top: 4em;
+        height: 90%;
+    }
+}
+
 /* ----- Icons on links --- */
 
 .EditOn a::before{