diff --git a/001-Jupyter/Create_JupyterKernel_conda.ipynb b/001-Jupyter/Create_JupyterKernel_conda.ipynb
index 6f178d8a6ba1baa3762fba549c8dda6d4628bab7..ad40a504980e521ad10de39b06ead61b0791dff9 100644
--- a/001-Jupyter/Create_JupyterKernel_conda.ipynb
+++ b/001-Jupyter/Create_JupyterKernel_conda.ipynb
@@ -11,10 +11,9 @@
     "toc-hr-collapsed": false
    },
    "source": [
-    "<img src=attachment:09375636-629b-4ee2-9011-455f6157ab16.png title=\"Python Logo\" width=\"360\" align=\"left\" style=\"float:right\"/>\n",
+    "<img src=attachment:09375636-629b-4ee2-9011-455f6157ab16.png title=\"Juelich Supercomputing Centre\" width=\"360\" align=\"left\" style=\"float:right\"/>\n",
     "<H1>Create your own Jupyter CONDA-Kernel</H1>\n",
-    "\n",
-    "-----------------------------------"
+    "<HR>"
    ]
   },
   {
diff --git a/001-Jupyter/Create_JupyterKernel_general.ipynb b/001-Jupyter/Create_JupyterKernel_general.ipynb
index b7e3011886663cd5ce6414ee322814585ca1fa13..9e4ed031c2a58c508701b160b02d4dbfa79ccf53 100644
--- a/001-Jupyter/Create_JupyterKernel_general.ipynb
+++ b/001-Jupyter/Create_JupyterKernel_general.ipynb
@@ -13,8 +13,7 @@
    "source": [
     "<img src=attachment:09375636-629b-4ee2-9011-455f6157ab16.png title=\"Python Logo\" width=\"360\" align=\"left\" style=\"float:right\"/>\n",
     "<H1>Create your own Jupyter Kernel</H1>\n",
-    "\n",
-    "-----------------------------------"
+    "<HR>"
    ]
   },
   {
diff --git a/001-Jupyter/List_JupyterExtensions.ipynb b/001-Jupyter/List_JupyterExtensions.ipynb
index 8fd53b97c3c3e3c5ee52f40714aea9691236510d..9cced3419c40bf39ab204fa188a01a95c36a47f5 100644
--- a/001-Jupyter/List_JupyterExtensions.ipynb
+++ b/001-Jupyter/List_JupyterExtensions.ipynb
@@ -13,8 +13,7 @@
    "source": [
     "<img src=attachment:09375636-629b-4ee2-9011-455f6157ab16.png title=\"Python Logo\" width=\"360\" align=\"left\" style=\"float:right\"/>\n",
     "<H1>List of Extensions on Jupyter-JSC</H1>\n",
-    "\n",
-    "-----------------------------------"
+    "<HR>"
    ]
   },
   {
diff --git a/001-Jupyter/List_PythonPackages.ipynb b/001-Jupyter/List_PythonPackages.ipynb
index 23da71d5eee2f2a86f26994bb53f73800751df57..333fb47517179197ff05d6ace80904598339db45 100644
--- a/001-Jupyter/List_PythonPackages.ipynb
+++ b/001-Jupyter/List_PythonPackages.ipynb
@@ -13,8 +13,7 @@
    "source": [
     "<img src=attachment:09375636-629b-4ee2-9011-455f6157ab16.png title=\"Python Logo\" width=\"360\" align=\"left\" style=\"float:right\"/>\n",
     "<H1>List of included Python packages</H1>\n",
-    "\n",
-    "-----------------------------------"
+    "<HR>"
    ]
   },
   {
diff --git a/001-Jupyter/Markdown_Tipps-and-Tricks.ipynb b/001-Jupyter/Markdown_Tipps-and-Tricks.ipynb
index 2c33e48abb604dbf244c8b10903f0ced89bb5b9f..02dfdbcdcadb45680249c91b78a9d94434d4eb09 100644
--- a/001-Jupyter/Markdown_Tipps-and-Tricks.ipynb
+++ b/001-Jupyter/Markdown_Tipps-and-Tricks.ipynb
@@ -12,10 +12,8 @@
    },
    "source": [
     "<img src=attachment:09375636-629b-4ee2-9011-455f6157ab16.png title=\"Python Logo\" width=\"360\" align=\"left\" style=\"float:right\"/>\n",
-    "<H5>Jens Henrik Göbbert</H5>\n",
     "<H1>Markdown Tipps & Tricks (for Jupyter Notebook)</H1>\n",
-    "\n",
-    "-----------------------------------"
+    "<HR>"
    ]
   },
   {