vsce: add page (#2229)

pages/common/vsce.md

@@ -0,0 +1,23 @@
+# vsce
+
+> Extension manager for Visual Studio Code.
+
+- List all the extensions created by a publisher:
+
+`vsce list {{publisher}}`
+
+- Publish an extension as major, minor or patch version:
+
+`vsce publish {{major|minor|patch}}`
+
+- Unpublish an extension:
+
+`vsce unpublish {{extension_id}}`
+
+- Package the current working directory as .vsix file:
+
+`vsce package`
+
+- Show the metadata associated with an extension:
+
+`vsce show {{extension_id}}`