Added README

README.md

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+
+Criterion
+=========
+
+## Installation
+
+```bash
+$ git clone https://github.com/Snaipe/Criterion.git
+$ cd Criterion
+$ ./autogen.sh && ./configure && make && sudo make install
+```
+
+## Usage
+
+Given a test file named test.c, compile it with `-lcriterion`:
+
+```bash
+$ gcc -o test test.c -lcriterion
+```
+
+## Samples
+
+Sample tests can be found in the [sample directory](https://github.com/Snaipe/Criterion/tree/master/samples).
+
+* [A simple test](https://github.com/Snaipe/Criterion/blob/master/samples/simple.c)
+* [Using multiple suites](https://github.com/Snaipe/Criterion/blob/master/samples/suites.c)
+* [Tests with signals](https://github.com/Snaipe/Criterion/blob/master/samples/signal.c)
+* [Using report hooks](https://github.com/Snaipe/Criterion/blob/master/samples/report.c)
+
+## F.A.Q.
+
+**Q. What's wrong with other test frameworks?**
+A. I worked with CUnit and Check, and I must say that they do their job
+   very well -- the only thing that bugs me is that setting up a test
+   suite from scratch is a pain, it should really be simpler. Most
+   (if not all) high-level languages have test frameworks with automatic
+   test registration, but all the ones for C require you to set up a
+   main, manually register suites, then tests. Criterion tries to
+   fix these shortcomings.
+
+**Q. Where has this been tested?**
+A. Currently, on Linux 2.6.32 and Linux 3.15.7, although it should work on
+   most \*nix systems. More tests will be added on the build matrix.
+
+**Q. Will this work under Windows/MSVC?**
+A. Windows support with MinGW is coming, but MSVC is a bit of a lost cause
+   for the C language. The project internally uses c99 features and gnu
+   extensions, and MSVC is stuck at supporting c89.