Fix typos

tips/TIP-0049/tip-0049.md

@@ -76,7 +76,7 @@ other nodes and to process blocks properly.
           <tr>
             <td>Storage Cost</td>
             <td>uint64</td>
-            <td>Defines the number of IOTA tokens required per unit of storage score.</td>
+            <td>Defines the number of IOTA coins required per unit of storage score.</td>
           </tr>
           <tr>
             <td>Factor Data</td>
@@ -463,9 +463,9 @@ other nodes and to process blocks properly.
     <td>Target Committee Size defines the target size of the committee. If there's fewer candidates the actual committee size could be smaller in a given epoch.</td>
   </tr>
   <tr>
-    <td>Chain Switching Treshold</td>
+    <td>Chain Switching Threshold</td>
     <td>uint8</td>
-    <td>Chain Switching Treshold defines the number of heavier slots that a chain needs to be ahead of the current chain to be considered for switching.</td>
+    <td>Chain Switching Threshold defines the number of heavier slots that a chain needs to be ahead of the current chain to be considered for switching.</td>
   </tr>
 </table>