message: Fix documentation formatting for OneHot op.
diff: @@ -66,7 +66,6 @@ Examples
  =========
  Suppose that
  -
  ```
  indices = [0, 2, -1, 1]
  depth = 3
  @@ -76,8 +75,8 @@ Suppose that
  ```
  Then output is `[4 x 3]`:
  -
  - ```output =
  +```
  +output =
  [5.0 0.0 0.0] // one_hot(0)
  [0.0 0.0 5.0] // one_hot(2)
  [0.0 0.0 0.0] // one_hot(-1)
  @@ -85,7 +84,6 @@ Then output is `[4 x 3]`:
  ```
  Suppose that
  -
  ```
  indices = [0, 2, -1, 1]
  depth = 3
  @@ -95,8 +93,8 @@ Suppose that
  ```
  Then output is `[3 x 4]`:
  -
  - ```output =
  +```
  +output =
  [0.0 3.0 3.0 3.0]
  [3.0 3.0 3.0 0.0]
  [3.0 3.0 3.0 3.0]
  @@ -106,8 +104,8 @@ Then output is `[3 x 4]`:
  // ^ one_hot(-1)
  // ^ one_hot(1)
  ```
  -Suppose that
  +Suppose that
  ```
  indices = [[0, 2], [1, -1]]
  depth = 3
  @@ -117,14 +115,15 @@ Suppose that
  ```
  Then output is `[2 x 2 x 3]`:
  -
  - ```output =
  +```
  +output =
  [
  [1.0, 0.0, 0.0] // one_hot(0)
  [0.0, 0.0, 1.0] // one_hot(2)
  ][
  [0.0, 1.0, 0.0] // one_hot(1)
  [0.0, 0.0, 0.0] // one_hot(-1)
  - ]```
  + ]
  +```
  END
  }
  