Update README.md

Author: keyoke

README.md

@@ -1,2 +1,13 @@
 # AzureBoardsImportCSVToWorkitemDiscussions
 Import CSV file to work item discussions
+
+# Requirements
+- VSCode https://code.visualstudio.com/
+- TypeScript https://www.typescriptlang.org/
+- NodeJS https://nodejs.org/en/
+- Node CLI for Azure DevOps https://github.com/Microsoft/tfs-cli
+
+# Building/Packaging the Extension
+ 1. git clone https://github.com/keyoke/AzureBoardsImportCSVToWorkitemDiscussions.git
+ 2. npm install
+ 3. npm run package