Add period at the end of a few sentences

Author: richy58729

LICENSE.md

@@ -13,7 +13,7 @@ The authors encourage you to redistribute this content as widely as possible, bu
 
 #### Credits
 
-_The Community Book of PowerShell Practices_ was originally compiled and edited by Don Jones and Matt Penny with input from the Windows PowerShell community on PowerShell.org
+_The Community Book of PowerShell Practices_ was originally compiled and edited by Don Jones and Matt Penny with input from the Windows PowerShell community on PowerShell.org.
 
 Portions copyright (c) Don Jones, Matt Penny, 2014-2015
 
@@ -27,7 +27,7 @@ Portions copyright (c) Joel Bennett, 2015
 
 #### NOTE
 
-The *PowerShell Best Practices* are always evolving, and continue to be edited and updated as the language and tools (and our community understanding of them) evolve. We encourage you to check back for new editions at least twice a year, by visiting [https://github.com/PoshCode/PowerShellPracticeAndStyle](https://github.com/PoshCode/PowerShellPracticeAndStyle)
+The *PowerShell Best Practices* are always evolving, and continue to be edited and updated as the language and tools (and our community understanding of them) evolve. We encourage you to check back for new editions at least twice a year, by visiting [https://github.com/PoshCode/PowerShellPracticeAndStyle](https://github.com/PoshCode/PowerShellPracticeAndStyle).
 
 The *PowerShell Style Guide* in particular is in PREVIEW, and we are still actively working out our disagreements about the rules in the guide through the GitHub issues system. Please don't be surprised if over then next few weeks we change rules to contradict what they say at this current moment.