Clarify Stops Below column of mining guide, formerly Min

webapp/views/pages/getting-started.ejs

@@ -45,7 +45,7 @@ this issue.</li>
 <h3>Maximum Mining Depths</h3>
 You must go below the maximum to get the material. Many materials also
 have a deeper level below which they are more common.
-Only a few materials stop occurring at lower depths (see "Minimum"
+Only a few materials stop occurring at lower depths (see "Stops Below"
 column).
 <%/* comment
 <!--Updated info is at:<a target="_blank" href="https://github.com/minetest-technic/technic/blob/master/manual.md">https://github.com/minetest-technic/technic/blob/master/manual.md</a><br/>-->
@@ -88,7 +88,7 @@ background: #F2F2F2;
 </p></style>
 <table id="table-6">
   <thead>
-  <th>Resource</th><th>Min</th><th>Max</th><th>Note</th>				<th>Supplied by Mod</th>
+  <th>Resource</th><th>Stops Below</th><th>Max</th><th>Note</th>				<th>Supplied by Mod</th>
   </thead>
   <tbody>
   <tr><td>Coal </td>	<td>&nbsp;</td>			<td>+64</td>	<td>abundant 0 or below</td>			<td>(minetest)</td></tr>