Fix haddock markup warnings

Author: harendra-kumar

core/src/Streamly/Internal/FileSystem/PosixPath.hs

@@ -62,15 +62,15 @@
 -- the filepath package APIs. It has some differences from the filepath
 -- package:
 --
--- * Empty paths are not allowed. Paths are validated before construction.
--- * The default Path type itself affords considerable safety regarding the
+-- 1. Empty paths are not allowed. Paths are validated before construction.
+-- 2. The default Path type itself affords considerable safety regarding the
 -- distinction of rooted or non-rooted paths, it also allows distinguishing
 -- directory and file paths.
--- * It is designed to provide flexible typing to provide compile time safety
+-- 3. It is designed to provide flexible typing to provide compile time safety
 -- for rooted/non-rooted paths and file/dir paths. The Path type is just part
 -- of that typed path ecosystem. Though the default Path type itself should be
 -- enough for most cases.
--- * It leverages the streamly array module for most of the heavy lifting,
+-- 4. It leverages the streamly array module for most of the heavy lifting,
 -- it is a thin wrapper on top of that, improving maintainability as well as
 -- providing better performance. We can have pinned and unpinned paths, also
 -- provide lower level operations for certain cases to interact more