移除所有區塊的幫助網址，將其設置為空字串

Author: shengyuan

blockly/blocks.js

@@ -34,7 +34,7 @@ Blockly.Blocks['ev3bt_new'] = {
         this.setOutput(true);
         this.setColour(230);
         this.setTooltip('');
-        this.setHelpUrl('https://tutorials.webduino.io/');
+        this.setHelpUrl('');
     }
 };
 
@@ -58,7 +58,7 @@ Blockly.Blocks['ev3bt_sendmsg'] = {
         this.setNextStatement(true, null);
         this.setColour(65);
         this.setTooltip('');
-        this.setHelpUrl('https://tutorials.webduino.io/');
+        this.setHelpUrl('');
     }
 };
 
@@ -78,7 +78,7 @@ Blockly.Blocks['ev3bt_recv'] = {
         this.setNextStatement(true, null);
         this.setColour(65);
         this.setTooltip('');
-        this.setHelpUrl('https://tutorials.webduino.io/');
+        this.setHelpUrl('');
     }
 };
 
@@ -92,6 +92,6 @@ Blockly.Blocks['ev3bt_getmsg'] = {
         this.setOutput(true, null);
         this.setColour(35);
         this.setTooltip('');
-        this.setHelpUrl('https://tutorials.webduino.io/');
+        this.setHelpUrl('');
     }
 };