Created Compilation recipes (markdown)

Compilation-recipes.md

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+This Wiki page contains "copy & paste" recipes to compile libModSecurity (and connectors) in your favorite Linux distribution.
+
+If your distribution is missing and you manage to compile it, don't forget to add it here in this list.
+
+
+> **Attention:** Before start the compilation process make sure that the _paths are right_, and the _commands are sane_.
+
+##### Table of Contents
+
+1. [Centos 7 Minimal](#centos-7-minimal)
+
+
+## Centos 7 Minimal
+
+Sent by @elialum (See: #1039)
+
+### libModSecurity
+
+```sh
+yum install gcc-c++ flex bison curl-devel curl yajl yajl-devel GeoIP-devel doxygen zlib-devel
+cd /opt/
+git clone https://github.com/SpiderLabs/ModSecurity
+cd ModSecurity
+git checkout libmodsecurity
+sh build.sh
+git submodule init
+git submodule update
+./configure
+yum install ftp://195.220.108.108/linux/fedora/linux/updates/23/x86_64/b/bison-3.0.4-3.fc23.x86_64.rpm
+make
+make install
+```
+
+### nginx connector
+
+```sh
+cd /opt/
+git clone https://github.com/SpiderLabs/ModSecurity-nginx
+cd /opt/ModSecurity-nginx
+git checkout experimental
+cd /opt
+wget http://nginx.org/download/nginx-1.9.2.tar.gz
+tar -xvzf nginx-1.9.2.tar.gz
+cd /opt/nginx-1.9.2
+/bin/cp -f /usr/sbin/nginx /usr/sbin/nginx_original_bkp
+./configure --add-module=/opt/ModSecurity-nginx 
+make
+make install
+```