Update to v2.6.5 without release

- Change something to make that purchase things can have some cores.
- Fix the download link of Arcaea client in README

> This is a small update.

latest version/templates/web/allpurchase.html

@@ -37,6 +37,10 @@
     <span class="char-num">{{x['type']}}</span>
     <br />
 
+    <span>Amount: </span>
+    <span class="char-num">{{x['amount']}}</span>
+    <br />
+
 
 
     {% if not loop.last %}

latest version/templates/web/changepurchaseitem.html

@@ -17,8 +17,11 @@
             <option value='pack'>Song pack</option>
             <option value='world_song'>World song</option>
             <option value='character'>Character</option>
+            <option value='core'>Core</option>
         </select>
     </div>
+    <label for="amount">Amount</label>
+    <input name="amount" id="amount" value="1" required>
     <br />
     <input type="submit" value="Add">
 </form>
@@ -36,6 +39,7 @@
             <option value='pack'>Pack</option>
             <option value='world_song'>World song</option>
             <option value='character'>Character</option>
+            <option value='core'>Core</option>
         </select>
     </div>
     <br />