Fix table markup in testing.md
diff --git a/docs/reference/testing.md b/docs/reference/testing.md
index dd0b982..d983301 100644
--- a/docs/reference/testing.md
+++ b/docs/reference/testing.md
@@ -101,23 +101,14 @@
namespace:
<span id="param-generators"></span>
-
-| Parameter Generator | Behavior |
-| ---------------------------- | -------------------------------------------- |
-| `Range(begin, end [, step])` | Yields values `{begin, begin+step, |
-: : begin+step+step, ...}`. The values do not :
-: : include `end`. `step` defaults to 1. :
-| `Values(v1, v2, ..., vN)` | Yields values `{v1, v2, ..., vN}`. |
-| `ValuesIn(container)` or | Yields values from a C-style array, an |
-: `ValuesIn(begin,end)` : STL-style container, or an iterator range :
-: : `[begin, end)`. :
-| `Bool()` | Yields sequence `{false, true}`. |
-| `Combine(g1, g2, ..., gN)` | Yields as `std::tuple` *n*-tuples all |
-: : combinations (Cartesian product) of the :
-: : values generated by the given *n* generators :
-: : `g1`, `g2`, ..., `gN`. :
-| `ConvertGenerator<T>(g)` | Yields values generated by generator `g`, |
-: : `static_cast` to `T`. :
+| Parameter Generator | Behavior |
+| ------------------- | ---------------------------------------------------- |
+| `Range(begin, end [, step])` | Yields values `{begin, begin+step, begin+step+step, ...}`. The values do not include `end`. `step` defaults to 1. |
+| `Values(v1, v2, ..., vN)` | Yields values `{v1, v2, ..., vN}`. |
+| `ValuesIn(container)` or `ValuesIn(begin,end)` | Yields values from a C-style array, an STL-style container, or an iterator range `[begin, end)`. |
+| `Bool()` | Yields sequence `{false, true}`. |
+| `Combine(g1, g2, ..., gN)` | Yields as `std::tuple` *n*-tuples all combinations (Cartesian product) of the values generated by the given *n* generators `g1`, `g2`, ..., `gN`. |
+| `ConvertGenerator<T>(g)` | Yields values generated by generator `g`, `static_cast` to `T`. |
The optional last argument *`name_generator`* is a function or functor that
generates custom test name suffixes based on the test parameters. The function
