Update headfoot.js - fixed relative links

fixed relative linking of images

js/headfoot.js

@@ -74,7 +74,7 @@ function head() {
     let link_m4lab = document.createElement('a');
     link_m4lab.href = "/";
     link_m4lab.classList.add("navbar-brand");
-    link_m4lab.innerHTML = "<img src='img/header/Logozeile_Header.png' alt='Logo Innovationslabor M4_LAB'>";
+    link_m4lab.innerHTML = "<img src='/img/header/Logozeile_Header.png' alt='Logo Innovationslabor M4_LAB'>";
     navbarheader.appendChild(link_m4lab);
     // navigation header - toggle button menu for mobile devices
     let togglebutton = document.createElement('button');
@@ -152,11 +152,11 @@ function foot() {
     //bmbf
     let bmbf = document.createElement('div');
     bmbf.classList.add("col-md-auto");
-    bmbf.innerHTML = "<img src='img/footer/Innovative_Hochschule_Initiative_BMBF_GWK_RGB.png' alt='Innovative Hochschule' style='height:90px'/>"
+    bmbf.innerHTML = "<img src='/img/footer/Innovative_Hochschule_Initiative_BMBF_GWK_RGB.png' alt='Innovative Hochschule' style='height:90px'/>"
     //m4labgrau
     let m4labgrau = document.createElement('div');
     m4labgrau.classList.add("col-md-auto");
-    m4labgrau.innerHTML = "<img src='img/footer/M4_LAB_LOGO_Graustufen.png' alt='M4_LAB' style='height:80px'/>"
+    m4labgrau.innerHTML = "<img src='/img/footer/M4_LAB_LOGO_Graustufen.png' alt='M4_LAB' style='height:80px'/>"
     // socmed
     let socialdiv = document.createElement('div');
     socialdiv.classList.add("col-md-auto");