add name attr and form-group class

src/client/js/components/PageEditor/LinkEditModal.jsx

@@ -360,11 +360,12 @@ class LinkEditModal extends React.PureComponent {
           </div>
           <div className="form-group row mb-0">
             <label className="col-sm-3">Notation</label>
-            <div className="custom-control custom-radio custom-control-inline">
+            <div className="custom-control custom-radio custom-control-inline form-group">
               <input
                 type="radio"
                 className="custom-control-input"
                 id="markdownType"
+                name="notation"
                 value={Linker.types.markdownLink}
                 checked={this.state.linkerType === Linker.types.markdownLink}
                 onChange={e => this.handleSelecteLinkerType(e.target.value)}
@@ -373,11 +374,12 @@ class LinkEditModal extends React.PureComponent {
                 Markdown
               </label>
             </div>
-            <div className="custom-control custom-radio custom-control-inline">
+            <div className="custom-control custom-radio custom-control-inline form-group">
               <input
                 type="radio"
                 className="custom-control-input"
                 id="growiType"
+                name="notation"
                 value={Linker.types.growiLink}
                 checked={this.state.linkerType === Linker.types.growiLink}
                 onChange={e => this.handleSelecteLinkerType(e.target.value)}
@@ -386,11 +388,12 @@ class LinkEditModal extends React.PureComponent {
                 Growi original
               </label>
             </div>
-            <div className="custom-control custom-radio custom-control-inline">
+            <div className="custom-control custom-radio custom-control-inline form-group">
               <input
                 type="radio"
                 className="custom-control-input"
                 id="pukiwikiType"
+                name="notation"
                 value={Linker.types.pukiwikiLink}
                 checked={this.state.linkerType === Linker.types.pukiwikiLink}
                 onChange={e => this.handleSelecteLinkerType(e.target.value)}