Add source code link to custom dialog demo.

Fix typos.

demos/custom-dialogs/custom-dialog.js

@@ -40,11 +40,11 @@ Blockly.confirm = function(message, callback) {
   CustomDialog.show('Confirm', message, {
     showOkay: true,
     onOkay: function() {
-      callback(true)
+      callback(true);
     },
     showCancel: true,
     onCancel: function() {
-      callback(false)
+      callback(false);
     }
   });
 };
@@ -56,11 +56,11 @@ Blockly.prompt = function(message, defaultValue, callback) {
     showInput: true,
     showOkay: true,
     onOkay: function() {
-      callback(CustomDialog.inputField.value)
+      callback(CustomDialog.inputField.value);
     },
     showCancel: true,
     onCancel: function() {
-      callback(null)
+      callback(null);
     }
   });
   CustomDialog.inputField.value = defaultValue;
@@ -69,8 +69,8 @@ Blockly.prompt = function(message, defaultValue, callback) {
 /** Hides any currently visible dialog. */
 CustomDialog.hide = function() {
   if (CustomDialog.backdropDiv_) {
-    CustomDialog.backdropDiv_.style.display = 'none'
-    CustomDialog.dialogDiv_.style.display = 'none'
+    CustomDialog.backdropDiv_.style.display = 'none';
+    CustomDialog.dialogDiv_.style.display = 'none';
   }
 };
 

demos/custom-dialogs/index.html

@@ -21,7 +21,10 @@
   <h1><a href="https://developers.google.com/blockly/">Blockly</a> &gt;
     <a href="../index.html">Demos</a> &gt; Custom Dialog</h1>
 
-  <p>This is a simple demo of replacing modal browser dialogs with HTML.</p>
+  <p>This is a simple demo of replacing modal browser dialogs with HTML.
+     To see how it works, see the source code in
+     <a href="custom-dialog.js">custom-dialog.js</a>
+  </p>
 
   <p>Try creating new variables, creating variables with names already in
      use, or deleting multiple blocks on the workspace.

demos/plane/README.txt

@@ -18,9 +18,9 @@ Finally, generate all the language versions wih this command:
 java -jar soy/SoyToJsSrcCompiler.jar --locales ar,be-tarask,br,ca,da,de,el,en,es,fa,fr,he,hrx,hu,ia,is,it,ja,ko,ms,nb,nl,pl,pms,pt-br,ro,ru,sc,sv,th,tr,uk,vi,zh-hans,zh-hant --messageFilePathFormat xlf/translated_msgs_{LOCALE}.xlf --outputPathFormat "generated/{LOCALE}.js" template.soy
 
 This is the process that Google uses for maintaining Blockly Games in 40+
-languages.  The XLIFF fromat is simple enough that it is trival to write a
+languages.  The XLIFF format is simple enough that it is trivial to write a
 Python script to reformat it into some other format (such as JSON) for
-compatability with other translation consoles.
+compatibility with other translation consoles.
 
 For more information, see message translation for Closure Templates:
 https://developers.google.com/closure/templates/docs/translation