Cleanup top-level documentation

Moved most of the documentation from `README` to
`README.md`, and added MarkDown formatting when
required. Also move the release notes to a
`CHANGELOG.md`, and made sure the formatting
was consistent.

README.md

@@ -1,3 +1,5 @@
+# nwipe
+
 nwipe is a command that will securely erase disks using a variety of
 recognised methods.  It is a fork of the dwipe command used by
 Darik's Boot and Nuke (dban).  nwipe is included with partedmagic if you
@@ -6,9 +8,84 @@ a need to run the DBAN dwipe command outside of DBAN, in order to
 allow its use with any host distribution, thus giving better hardware
 support.
 
-To use from the git repository, first create all the autoconf files with
-`./init.sh`
+## Compiling & Installing
 
-Then do the standard `./configure --prefix=/usr && make && make install`
+`nwipe` requires the following libraries to be installed:
 
-For developers & release notes please see the [README file](README)
+* ncurses
+* pthreads
+* parted
+
+### Debian & Ubuntu prerequisites
+
+If you are compiling `nwipe` from source, the following libraries will need to be installed first:
+
+```bash
+sudo apt install \
+  build-essential \
+  pkg-config \
+  automake \
+  libncurses5-dev \
+  autotools-dev \
+  libparted-dev
+```
+
+### Fedora prerequisites
+
+```bash
+sudo bash
+dnf update
+dnf groupinstall "Development Tools"
+dnf groupinstall "C Development Tools and Libraries"
+yum install ncurses-devel
+yum install parted-devel
+```
+
+### Compilation
+
+For a development setup, see [the hacking section below](#Hacking).
+
+First create all the autoconf files:
+```
+./init.sh
+```
+
+Then compile & install using the following standard commands:
+```
+./configure
+make
+make install
+```
+
+### Hacking
+
+If you wish to submit pull requests to this code we would prefer you enable all warnings when compiling.
+This can be done using the following compile commands:
+
+```
+./configure --prefix=/usr CFLAGS='-O0 -g -Wall -Wextra'
+make
+make install
+```
+
+The `-O0 -g` flags disable optimisations. This is required if you're debugging with
+`gdb` in an IDE such as Kdevelop. With these optimisations enabled you won't be
+able to see the values of many variables in nwipe, not to mention the IDE won't step
+through the code properly.
+
+The `-Wall` and `-Wextra` flags enable all compiler warnings. Please submit code with zero warnings.
+
+Once done with your coding then the released/patch/fixed code can be compiled,
+with all the normal optimisations, using:
+```
+./configure --prefix=/usr && make && make install
+```
+
+## Bugs
+
+Bugs can be reported on GitHub:
+https://github.com/martijnvanbrummelen/nwipe
+
+## License
+
+GNU General Public License v2.0