Corrected the typo and moved tag to optional

Documents/How-to-use.md

@@ -121,13 +121,13 @@ Per Category, each XML file has VM name, Resource Group name, etc. We do not rec
     1. Design test case and its configuration.
     2. Create a new test case xml file under ./XML/TestCases folder. Or, update with new tags 
         in the existing xml file.
-    3. Define testName, PowershellScript, setupType, Platform, Category, Area and Tags as required. 
+    3. Define testName, PowershellScript, setupType, Platform, Category, and Area as required. 
         Add optional tag if needed.
     4. Test design may have two ways;
         a. A single PowerShell script execution: A single PowerShell script imports builtin library 
             modules and posts the result. For example, 'BVT-VERIFY-DEPLOYMENT-PROVISION.ps1' shows 
             this script calls 'DeployVMs' function for its testing and collect the result 
-            by 'CheckKernelLogs'. 'DeplyVMs' and 'CheckKernelLogs' are functions definded 
+            by 'CheckKernelLogs'. 'DeployVMs' and 'CheckKernelLogs' are functions definded 
             in ./Libraries/CommonFunctions.psm1 module. 
             You can add new module or update existing ones for further development.
         b. PowerShell script wraps multiple non-PowerShell script like Bash or Python scripts: