Fix doc syntax/warning

doc/library/gpuarray/ctc.txt

@@ -16,7 +16,7 @@
     Usage of connectionist temporal classification (CTC) loss Op, requires that
     the `warp-ctc <https://github.com/baidu-research/warp-ctc>`_ library is
     available. In case the warp-ctc library is not in your compiler's library path,
-    the ``config.ctc.root`` configuration option must be appropriately set to the
+    the :attr:`config.ctc.root` configuration option must be appropriately set to the
     directory containing the warp-ctc library files.
 
 .. note::

theano/gpuarray/linalg.py

@@ -702,7 +702,8 @@ class GpuMagmaQR(GpuMagmaBase, CGpuKernelBase):
 
     Parameters
     ----------
-    complete : If `False`, returns only r.
+
+        complete : If False, returns only ``R``.
 
     .. warning::