fix(README): Correct paths to actions and library directories (#13)

Reviewed-by: Razvan Deaconescu <razvand@unikraft.io>
Approved-by: Razvan Deaconescu <razvand@unikraft.io>

README.md

@@ -33,7 +33,7 @@ kraft pkg ls --apps --update
 | Status | Image |
 |-|-|
 | [![](https://github.com/unikraft/catalog/actions/workflows/library-helloworld.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-helloworld.yaml) | [`unikraft.org/helloworld:latest`](library/helloworld) |
-| [![](https://github.com/unikraft/catalog/actions/workflows/library-nginx1.15.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-nginx/1.15.yaml) | [`unikraft.org/nginx:1.15`](library/nginx1.15) |
-| [![](https://github.com/unikraft/catalog/actions/workflows/library-python3.10.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-python/3.10.yaml) | [`unikraft.org/python:3.10`](library/python3.10) |
-| [![](https://github.com/unikraft/catalog/actions/workflows/library-redis7.0.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-redis/7.0.yaml) | [`unikraft.org/redis:7.0`](library/redis7.0) |
-| [![](https://github.com/unikraft/catalog/actions/workflows/library-lua5.4.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-lua/5.4.yaml) | [`unikraft.org/lua:5.4`](library/lua5.4) |
+| [![](https://github.com/unikraft/catalog/actions/workflows/library-nginx1.15.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-nginx1.15.yaml) | [`unikraft.org/nginx:1.15`](library/nginx/1.15) |
+| [![](https://github.com/unikraft/catalog/actions/workflows/library-python3.10.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-python3.10.yaml) | [`unikraft.org/python:3.10`](library/python/3.10) |
+| [![](https://github.com/unikraft/catalog/actions/workflows/library-redis7.0.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-redis7.0.yaml) | [`unikraft.org/redis:7.0`](library/redis/7.0) |
+| [![](https://github.com/unikraft/catalog/actions/workflows/library-lua5.4.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-lua5.4.yaml) | [`unikraft.org/lua:5.4`](library/lua/5.4) |