Add paths tag for questions regarding tsconfig paths not working (#38)

Maybe there is more information that could be added?

I just pasted this from the "paths are not magic" tag in the typescript
server

data/tags/paths.md

@@ -0,0 +1,12 @@
+---
+question: How to use tsconfig paths?
+keywords:
+    - "paths"
+    - "baseUrl"
+    - "magic"
+---
+
+The `paths` and `baseUrl` compiler options don't cause any remapping of imports paths, they only inform TS of existing mappings, which you'll have to setup with some other tool.
+
+`baseUrl` is a pretty well-supported option (e.g. using the `NODE_PATH` environment variable with node or `resolve.modules` with webpack).
+`paths` can be trickier to setup, (see [this](https://nodejs.org/api/packages.html#packages_subpath_imports)), and you may find it to not be worth the effort.