continue improving tutorial 1

Author: simongravelle

docs/sphinx/source/_static/custom.css

@@ -47,6 +47,25 @@
           mask-image: var(--icon--info);
 }
 
+/* New non-title information admonition */
+.admonition.non-title-info > .admonition-title {
+    display: none;  /* Hide the title */
+  }
+  
+  .admonition.non-title-info {
+    background-color: #2962ff10;
+    border-color: #2963ff;
+    font-size: 13pt;
+  }
+  
+  .admonition.non-title-info > .admonition-content {
+    color: #4b2d83;  /* Purple text color for contrast */
+  }
+  
+  .admonition.non-title-info > .admonition-title::before {
+    content: '';  /* No icon needed, as there's no title */
+  }
+
 :root { /*https://fontawesomeicons.com/svg/icons/info*/
   --icon--patreon: url('data:image/svg+xml;charset=utf-8,   <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"> <g> <path fill="none" d="M0 0h24v24H0z"/> <path d="M15 17a7.5 7.5 0 1 1 0-15 7.5 7.5 0 0 1 0 15zM2 2h4v20H2V2z"/> </g> </svg>')
 }
@@ -130,4 +149,8 @@ a:active {
 
 section {
   text-align: justify;
-}
+}
+
+
+
+  

docs/sphinx/source/shared/cite.rst

@@ -1,5 +1,5 @@
-If you find these tutorials useful for your research or simulations, you can
-cite: A Set of Tutorials for the LAMMPS Simulation Package by Simon Gravelle,
+If you find these tutorials useful, you can
+cite *A Set of Tutorials for the LAMMPS Simulation Package* by Simon Gravelle,
 Jacob R. Gissinger, and Axel Kohlmeyer (2025) :cite:`gravelle2025tutorials`. You
 can access the full paper on |gravelle2025tutorials_arXiv|.