improve new extensions

docs/src/demos/Marks/Bold/index.vue

@@ -30,10 +30,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        Bold(),
+        Document,
+        Paragraph,
+        Text,
+        Bold,
       ],
       content: `
         <p>This isn’t bold.</p>

docs/src/demos/Marks/Code/index.vue

@@ -30,10 +30,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        Code(),
+        Document,
+        Paragraph,
+        Text,
+        Code,
       ],
       content: `
         <p>This isn’t code.</p>

docs/src/demos/Marks/Highlight/index.vue

@@ -61,10 +61,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        Highlight(),
+        Document,
+        Paragraph,
+        Text,
+        Highlight,
       ],
       content: `
           <p>This isn’t highlighted.</s></p>

docs/src/demos/Marks/Italic/index.vue

@@ -30,10 +30,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        Italic(),
+        Document,
+        Paragraph,
+        Text,
+        Italic,
       ],
       content: `
         <p>This isn’t italic.</p>

docs/src/demos/Marks/Link/index.vue

@@ -32,10 +32,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        Link(),
+        Document,
+        Paragraph,
+        Text,
+        Link,
       ],
       content: `
         <p>

docs/src/demos/Marks/Strike/index.vue

@@ -30,10 +30,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        Strike(),
+        Document,
+        Paragraph,
+        Text,
+        Strike,
       ],
       content: `
           <p>This isn’t striked through.</s></p>

docs/src/demos/Marks/TextStyle/index.vue

@@ -26,10 +26,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        TextStyle(),
+        Document,
+        Paragraph,
+        Text,
+        TextStyle,
       ],
       content: `
         <p><span>This has a &lt;span&gt; tag without a style attribute, so it’s thrown away.</span></p>

docs/src/demos/Marks/Underline/index.vue

@@ -30,10 +30,10 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        Document(),
-        Paragraph(),
-        Text(),
-        Underline(),
+        Document,
+        Paragraph,
+        Text,
+        Underline,
       ],
       content: `
         <p>There is no underline here.</p>