Added FAQ page (#108)

* Added FAQ

* Typo

* Plural

* Rephrase

* Friendlier no

* Update faq.rst

Co-authored-by: Dan Joseph <danbjoseph@gmail.com>

source/faq.rst

@@ -0,0 +1,30 @@
+##########################
+Frequently Asked Questions
+##########################
+
+***************
+Data Processing
+***************
+
+Can I process two or more orthophoto GeoTIFFs to stitch them together? 
+----------------------------------------------------------------------
+
+No. ODM is a photogrammetric pipeline and orthophotos do not have the necessary camera information since the images have already been orthorectified. You can use another program such as `Hugin <http://hugin.sourceforge.net/>`_ to do that.
+
+*********
+Licensing
+*********
+
+I want to build a commercial application that includes ODM. Do I need a commercial license?
+-------------------------------------------------------------------------
+
+ODM is free and open source software, released under the `AGPLv3 <https://github.com/OpenDroneMap/ODM/blob/master/LICENSE>`_. You are free to build and sell applications with it, just make sure to comply with the requirements of the license, in particular the disclose source requirement.
+
+Are there other licensing options aside from the AGPLv3?
+--------------------------------------------------------
+
+Nope, sorry!
+
+
+`Learn to edit <https://github.com/opendronemap/docs#how-to-make-your-first-contribution>`_ and help improve `this page <https://github.com/OpenDroneMap/docs/blob/publish/source/faq.rst>`_!
+

source/index.rst

@@ -55,3 +55,4 @@ The documentation is available in several languages. Some translations are incom
     multispectral
     requesting-features
     contributing
+    faq