diff --git a/README.md b/README.md
index 82adcc1..8299182 100644
--- a/README.md
+++ b/README.md
@@ -14,8 +14,8 @@ This project was derived from https://github.com/vasi/squashfuse with the follow
 which could be generated by
 an independently installed [mksquashfs](http://squashfs.sourceforge.net/) tool
 and loaded into memory in advance.
-1. Introduced vfd(virtual file descriptor) as a handle for follow-up libsquash operations.
-The vfd is a non-negative integer that lives together with
+1. Introduced virtual file descriptor (vfd) as a handle for follow-up libsquash operations.
+The vfd is generated via `dup(0)` so that it could live together with
 other ordinary file descriptors of the process.
 1. Added new API that mirror the calling style of common system calls;
 also added is a sample on how to use libsquash in an unobtrusive way by utilizing those API.
@@ -175,4 +175,5 @@ Thank you [Dave Vasilevsky](https://github.com/vasi) for the excellent work of s
 
 ## See Also
 
-- [Enclose.IO](https://github.com/pmq20/enclose-io): cloud-based service that compiles your application into a single executable with auto-update.
+- [Node.js Compiler](https://github.com/pmq20/node-compiler): Ahead-of-time (AOT) Compiler designed for Node.js, that just works.
+- [Ruby Compiler](https://github.com/pmq20/ruby-compiler): Ahead-of-time (AOT) Compiler designed for Ruby, that just works.