Update tutorial titles to reflect 'Visual Editor' and 'Multi-threaded' terminology for clarity

Author: nikoscham

tutorials/HeatConduction1DWallPlatform.html

@@ -61,7 +61,7 @@ <h1 class="top">
         />
       </a>
     </h1>
-    <h1>Heat Conduction Through a Wall Tutorial (FEAScript Platform)</h1>
+    <h1>Heat Conduction Through a Wall Tutorial (Visual Editor)</h1>
 
     <ul id="menu">
       <li><a href="#introduction">Introduction</a></li>

tutorials/HeatConduction2DFinGmsh.html

@@ -231,7 +231,7 @@ <h3 id="gmshgeofile"><a name="gmshgeofile"></a>Example Gmsh ".geo" File</h3>
     >
 
     <p>
-      Note how the physical line tags in the geo file correspond to the boundary conditions in our FEAScript
+      Note how the physical line tags in the ".geo" file correspond to the boundary conditions in our FEAScript
       code:
     </p>
     <ul>

tutorials/HeatConduction2DFinPlatform.html

@@ -61,7 +61,7 @@ <h1 class="top">
         />
       </a>
     </h1>
-    <h1>Heat Conduction in a Two-Dimensional Fin Tutorial (FEAScript platform)</h1>
+    <h1>Heat Conduction in a Two-Dimensional Fin Tutorial (Visual Editor)</h1>
 
     <ul id="menu">
       <li><a href="https://feascript.com/index.html">Home</a></li>

tutorials/HeatConduction2DFinWorker.html

@@ -72,7 +72,7 @@ <h1 class="top">
         />
       </a>
     </h1>
-    <h1>Heat Conduction in a Two-Dimensional Fin Tutorial (Web Worker)</h1>
+    <h1>Heat Conduction in a Two-Dimensional Fin Tutorial (Multi-threaded)</h1>
 
     <ul id="menu">
       <li><a href="#webworkerimplementation">Web Worker Implementation</a></li>

tutorials/SolidificationFront2DWorker.html

@@ -72,7 +72,7 @@ <h1 class="top">
         />
       </a>
     </h1>
-    <h1>Solidification Front Propagation in a Two-Dimensional Domain (Web Worker)</h1>
+    <h1>Solidification Front Propagation in a Two-Dimensional Domain (Multi-threaded)</h1>
 
     <ul id="menu">
       <li><a href="#webworkerimplementation">Web Worker Implementation</a></li>