spellcheck fixes.

README.md

@@ -41,14 +41,22 @@ Installation
 ============
 
  * Requirements
- Python 2.7
- IANA tz data archive
+ * Python 2.7
+ * IANA tz data archive
 
- 1 Get the tz data archive file.
+ 1 Download the IANA timezone data archive file.
   > wget 'https://www.iana.org/time-zones/repository/releases/tzdata2012j.tar.gz'
 
- 2 Extact the arcihve to your desired directory.
-  > tar xzvf tzdata2012j.tar.gz /tmp
+ 2 Extract the archive to your desired directory.
+  > mkdir /tmp/tzdata2012j
+ > tar xzvf tzdata2012j.tar.gz /tmp/tzdata2012j
 
- 3 Execute tz2js.py passing the tzdata's parent directory.
-  > Execute tz2js.py /tmp.
+ 3 Execute tz2js.py with tzdata's parent directory as an argument.
+  > ./tz2js.py /tmp
+
+
+Thanks to ...
+=============
+
+The group of people that maintain the timezone's extremely detailed and
+complex database. Great work people!