Update remark on ctc.root config variable in ctc function's docstring

Signed-off-by: João Victor Tozatti Risso <joaovictor.risso@gmail.com>

Update remark on ctc.root config variable in ctc function's docstring
5236ab96 · João Victor Tozatti Risso · d0ec8801 · 5236ab96
--- a/theano/tensor/nnet/ctc.py
+++ b/theano/tensor/nnet/ctc.py
@@ -198,8 +198,9 @@ def ctc(activations, labels, input_lengths):
    Notes
    -----
-    Using the loss function requires that Baidu's warp-ctc library is installed and the
+    Using the loss function requires that Baidu's warp-ctc library is installed. If the
-    configuration variable `config.ctc.root` be properly set.
+    warp-ctc library is not on the compiler's default library path, the configuration
+    variable ``config.ctc.root`` be properly set.
    Parameters
    ----------