minor #123 Add a failing test about tables (javiereguiluz)

This PR was squashed before being merged into the main branch.

Discussion
----------

Add a failing test about tables

The table with the leading space in the header and/or rows is failing.

Commits
-------

592dc25 Add a failing test about tables

Author: javiereguiluz

tests/fixtures/expected/blocks/nodes/tables.html

@@ -22,6 +22,44 @@
             </tbody>
 </table>
 
+<table>
+    <thead>
+        <tr>
+            <th>Columns separated by just 1 space</th>
+            <th>Another header</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>xxx</td>
+            <td>yyy</td>
+        </tr>
+        <tr>
+            <td>xxx</td>
+            <td>yyy</td>
+        </tr>
+    </tbody>
+</table>
+
+<table>
+    <thead>
+        <tr>
+            <th>Header with a leading space</th>
+            <th>Another header</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>xxx</td>
+            <td>yyy</td>
+        </tr>
+        <tr>
+            <td>xxx</td>
+            <td>yyy</td>
+        </tr>
+    </tbody>
+</table>
+
 <p>Simple table headless:</p>
 
 <table>
@@ -39,6 +77,19 @@
     </tbody>
 </table>
 
+<table>
+    <tbody>
+        <tr>
+            <td>Column with leading space</td>
+            <td>yyy</td>
+        </tr>
+        <tr>
+            <td>Another column with leading space</td>
+            <td>yyy</td>
+        </tr>
+    </tbody>
+</table>
+
 <p>Grid table:</p>
 
 <table>

tests/fixtures/source/blocks/nodes/tables.rst

@@ -7,13 +7,32 @@ Route path  If the requested URL is /foo              If the requested URL is /f
 /foo/       It makes a 301 redirect to /foo/          It matches (200 status response)
 ==========  ========================================  ==========================================
 
+================================================== ==========================================
+Columns separated by just 1 space                  Another header
+================================================== ==========================================
+xxx                                                 yyy
+xxx                                                 yyy
+================================================== ==========================================
+
+============================  ============================================
+ Header with a leading space  Another header
+============================  ============================================
+ xxx                          yyy
+ xxx                          yyy
+============================  ============================================
+
 Simple table headless:
 
 ==========  ========================================  ==========================================
 /foo        It matches (200 status response)          It doesn't match (404 status response)
 /foo/       It makes a 301 redirect to /foo/          It matches (200 status response)
 ==========  ========================================  ==========================================
 
+==================================  ====================================
+ Column with leading space          yyy
+ Another column with leading space  yyy
+==================================  ====================================
+
 Grid table:
 
 +--------+------------+