fix(tools): sampler, table syntax (#136)

tools/doe_synbio/sampler.xml

@@ -90,16 +90,25 @@ Input
 
 Below is an example of an input file:
 
++-----------+----------+---------------------+
 | Parameter | maxValue | Ratios              |
-|-----------|----------|---------------------|
++===========+==========+=====================+
 | CP        | 125      | 0.0 0.1 0.3 0.5 1.0 |
++-----------+----------+---------------------+
 | CPK       | 125      | 1                   |
++-----------+----------+---------------------+
 | tRNA      | 125      |                     |
++-----------+----------+---------------------+
 | AA        | 125      |                     |
++-----------+----------+---------------------+
 | ribosomes | 125      |                     |
++-----------+----------+---------------------+
 | mRNA      | 125      |                     |
++-----------+----------+---------------------+
 | Mg        | 125      |                     |
++-----------+----------+---------------------+
 | K         | 125      |                     |
++-----------+----------+---------------------+
 
 The first column is the parameter (or factor) names.