Typos

[gdimitrova]

• "Why HawkCD" section:
  - "Integrate with..." subsection - between "Team City" and "TFS" there should be a comma;
  - "Build with the CD..." subsection - "prcisely" should be "precisely";
  - "mechanisum" should be "mechanism;
• "Features" section:
  - "Parallel Job Execution" subsection - "feedabck" should be "feedback";
  - "User Management section - "atuhorization" should be "authorization";
• "About" section: "Contntinuous" should be "Continuous";
• "Platform & Tools" section:
  - Between "solution" and "It" - there should be a full stop;
  - "WIndows" should be "Windows";
  - Between "Windows" and "OS X" there should be a comma;
  - Between "build" and"test" there should be a comma;
  - "developoed" should be "developed";