Made changes to ch01.asciidoc

ch01.asciidoc

@@ -369,7 +369,7 @@ The authoritative Git repository containing the book and example application sou
 
 All contents of the book's repository are licensed under http://creativecommons.org/licenses/by-sa/2.0/[Creative Commons Attribution-ShareAlike 2.0 Generic], and we invite the community at large to contribute work, including feature requests, typographical error corrections, and enhancements, via our http://bit.ly/1e7kQRD[GitHub Issue Tracker].
 
-The print release of the book and its example source is set to be given the Git tag of +1.0.0+ in the authoritative repository, and development will continue thereafter in the +master+ branch to correct errata and add supplmentary material, including new chapters and use cases.  The community is welcome to suggest or request topics for additional coverage.
+The print release of the book and its example source is set to be given the Git tag of +1.0.0+ in the authoritative repository, and development will continue thereafter in the +master+ branch to correct errata and add supplementary material, including new chapters and use cases.  The community is welcome to suggest or request topics for additional coverage.
 
 The example application accompanying the use cases raised in this book is called GeekSeek, and it is publicly available at http://geekseek.continuousdev.org.  The source is located in this repository under _code/application_, and instructions for building, testing, and running locally are detailed in http://bit.ly/1e7wJqQ[Chapter 4].  The build jobs for the application are kindly powered by http://www.cloudbees.com[CloudBees] at http://bit.ly/1e7wRGN and http://bit.ly/1e7wQ5H.