Fix documentation warning

modules/dnn/tutorials/tutorial_dnn_build.markdown

@@ -46,9 +46,9 @@ git clone https://github.com/Itseez/opencv_contrib
       You you can uncheck `BUILD_LIBPROTOBUF_FROM_SOURCES` flag to try use protobuf installed in your system.
       Elsewise libpotobuf will be built from opencv sources.
 
-    - You can additionally check `opencv_dnn_BUILD_TORCH_IMPORTER` parameter to build [Torch7](http://torch.ch) importer.
-       It allows you to use networks, generated by Torch7 [nn](https://github.com/torch/nn/blob/master/README.md) module.
-       ![](images/build_4.png)
+    - You can additionally check `opencv_dnn_BUILD_TORCH_IMPORTER` parameter to build [Torch7](http://torch.ch/) importer.
+      It allows you to use networks, generated by [Torch7.nn](https://github.com/torch/nn/blob/master/README.md/) module.
+      ![](images/build_4.png)
 
 -# Press *Configure* and *Generate*.
    ![](images/build_5.png)