Merge pull request #220 from penhs/master

Update README.md
diff --git a/README.md b/README.md
index 74e6620..44e392b 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,10 @@
 MochiWeb is an Erlang library for building lightweight HTTP servers.
 
-The latest version of MochiWeb is available at http://github.com/mochi/mochiweb
+The latest version of MochiWeb is available at https://github.com/mochi/mochiweb
 
-The mailing list for MochiWeb is at http://groups.google.com/group/mochiweb/
+The mailing list for MochiWeb is at https://groups.google.com/group/mochiweb/
+
+Erlang OTP is required for setting up the MochiWeb environment and is available at https://www.erlang.org/
 
 To create a new mochiweb using project:
    make app PROJECT=project_name
@@ -10,6 +12,8 @@
 To create a new mochiweb using project in a specific directory:
    make app PROJECT=project_name PREFIX=$HOME/projects/
 
+Information about Rebar (Erlang build tool) is available at https://github.com/rebar/rebar
+
 MochiWeb is currently tested with Erlang/OTP R15B03 through 21.2.3.
 
 # OTP 21.2, 21.2.1, 21.2.2 warning