Add basif FTorch.md for FORD.

FTorch.md

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+---
+project: FTorch
+summary: A library for coupling (Py)Torch machine learning models to Fortran
+author: ICCS Cambridge
+license: mit
+github: https://github.com/Cambridge-ICCS
+project_github: https://github.com/Cambridge-ICCS/FTorch
+src_dir: ./src
+         ./utils
+output_dir: ./doc
+exclude_dir: **/build*
+extra_filetypes: c   //
+                 cpp //
+                 h //
+                 py  #
+sort: alpha
+source: true
+graph: true
+externalize: true
+md_extensions: markdown.extensions.toc
+               markdown.extensions.tables
+               markdown.extensions.fenced_code
+---
+
+--------------------
+
+This is the FTorch project.
+
+[TOC]
+
+Brief description
+-----------------
+
+It is desirable to be able to run machine learning (ML) models directly in Fortran.
+ML models are often trained in some other language (say, Python) using a popular frameworks (say, PyTorch) and saved.
+We want to run inference on this model without having to call a Python executable.
+To achieve this we use the existing Torch C++ interface, libtorch.
+
+FTorch provides a library enabling a user to directly couple their PyTorch models to Fortran code.
+There are also installation instructions for the library and examples of performing coupling.
+
+We support running on both CPU and GPU, and have tested the library on UNIX and Windows based operating systems
+
+
+License
+-------
+
+The FTorch source code, related files and documentation are
+distributed under an MIT license.  See the
+[LICENSE](d)
+file for more details.
+
+
+Projects using FTorch
+---------------------
+