migration: github.com/opencv/opencv

doc/py_tutorials/py_setup/py_intro/py_intro.markdown

@@ -58,7 +58,7 @@ OpenCV Needs You !!!
 Since OpenCV is an open source initiative, all are welcome to make contributions to the library,
 documentation, and tutorials. If you find any mistake in this tutorial (from a small spelling
 mistake to an egregious error in code or concept), feel free to correct it by cloning OpenCV in
-[GitHub](https://github.com/Itseez/opencv) and submitting a pull request. OpenCV developers will
+[GitHub](https://github.com/opencv/opencv) and submitting a pull request. OpenCV developers will
 check your pull request, give you important feedback and (once it passes the approval of the
 reviewer) it will be merged into OpenCV. You will then become an open source contributor :-)
 

doc/py_tutorials/py_setup/py_setup_in_fedora/py_setup_in_fedora.markdown

@@ -119,7 +119,7 @@ Or you can download latest source from OpenCV's github repo. (If you want to con
 choose this. It always keeps your OpenCV up-to-date). For that, you need to install **Git** first.
 @code{.sh}
 yum install git
-git clone https://github.com/Itseez/opencv.git
+git clone https://github.com/opencv/opencv.git
 @endcode
 It will create a folder OpenCV in home directory (or the directory you specify). The cloning may
 take some time depending upon your internet connection.

doc/py_tutorials/py_setup/py_setup_in_windows/py_setup_in_windows.markdown

@@ -76,7 +76,7 @@ Building OpenCV from source
 
 -#  Download OpenCV source. It can be from
     [Sourceforge](http://sourceforge.net/projects/opencvlibrary/) (for official release version) or
-    from [Github](https://github.com/Itseez/opencv) (for latest source).
+    from [Github](https://github.com/opencv/opencv) (for latest source).
 -#  Extract it to a folder, opencv and create a new folder build in it.
 -#  Open CMake-gui (*Start \> All Programs \> CMake-gui*)
 -#  Fill the fields as follows (see the image below):