chore: line number dom elements updated to use span (#8)

Author: gratcliff

__tests__/codeMirror.test.js

@@ -155,7 +155,7 @@ describe('highlight mode', () => {
   });
 
   it('should return line numbers by default', () => {
-    expect(node.find('p').first().hasClass('cm-lineNumber')).toBe(true);
+    expect(node.find('span').first().hasClass('cm-lineNumber')).toBe(true);
   });
 
   it('should convert variable regex matches to a component instance', () => {

src/codeMirror/index.jsx

@@ -11,9 +11,9 @@ import 'codemirror/mode/meta';
 // Pre output conversion
 // CodeMirror "Gutter" -> Apply line numbers to styled lines
 const defaultLineJsx = line => (
-  <p key={`ln-${line}`} className="cm-lineNumber">
+  <span key={`ln-${line}`} className="cm-lineNumber">
     {line}
-  </p>
+  </span>
 );
 
 // Wrap children elements, seperated by line into divs