Minor tweak

Author: javiereguiluz

reference/configuration/framework.rst

@@ -963,9 +963,9 @@ every request.
 
 Here are some common examples of how ``base_uri`` merging works in practice:
 
-========================== ================== ==========================
+========================== ================== =============================
 ``base_uri`` Relative URI Actual Requested URI
-========================== ================== ==========================
+========================== ================== =============================
 http://example.org /bar http://example.org/bar
 http://example.org/foo /bar http://example.org/bar
 http://example.org/foo bar http://example.org/bar
@@ -977,7 +977,7 @@ http://example.org/api/v4 /bar http://example.org/bar
 http://example.org/api/v4/ /bar http://example.org/bar
 http://example.org/api/v4 bar http://example.org/api/bar
 http://example.org/api/v4/ bar http://example.org/api/v4/bar
-========================== ================== ==========================
+========================== ================== =============================
 
 bindto
 ......