Give Ray a pretty README

ray/README.md

@@ -0,0 +1,17 @@
+# Ray
+
+[![Container source](https://img.shields.io/static/v1?label=Container%20Source&message=GitHub&color=lightgrey&logo=github&style=flat-square)](https://github.com/MillironX/singularity-builds/tree/master/ray)
+[![Ray source](https://img.shields.io/static/v1?label=Ray%20Source&message=GitHub&color=lightgrey&logo=github&style=flat-square)](https://github.com/sebhtml/ray)
+[![Version v2.4-4](https://img.shields.io/static/v1?label=Latest%20version&message=v2.3.1&color=yellowgreen&logo=linuxcontainers&style=flat-square)](https://cloud.sylabs.io/library/millironx/default/ray)
+[![Docs](https://img.shields.io/static/v1?label=Docs&message=SourceForge&color=blue&style=flat-square)](http://denovoassembler.sourceforge.net/)
+[![Ubuntu base](https://img.shields.io/static/v1?label=Base%20image&message=Ubuntu&color=e95420&logo=ubuntu&style=flat-square)](https://ubuntu.com/)
+
+Ray is a parallel de novo genome assembler that utilises the message-passing
+interface everywhere and is implemented using peer-to-peer communication.
+
+## Tools installed
+
+### Ray
+
+- `mpiexec`
+- `Ray`