Revert "doc: replace fzf-share mention with sk-share from Skim package"

This reverts commit de5b2ef096cc03796398f7ca627ad5f4306aa065.

Changed files
+4 -4
doc
+4 -4
doc/packages/shell-helpers.section.md
···
Some packages provide the shell integration to be more useful. But unlike other systems, nix doesn't have a standard `share` directory location. This is why a bunch `PACKAGE-share` scripts are shipped that print the location of the corresponding shared folder. Current list of such packages is as following:
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- `sk` : `sk-share`
+
- `fzf` : `fzf-share`
-
E.g. `sk` can then be used in the `.bashrc` like this:
+
E.g. `fzf` can then be used in the `.bashrc` like this:
```bash
-
source "$(sk-share)/completion.bash"
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source "$(sk-share)/key-bindings.bash"
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source "$(fzf-share)/completion.bash"
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source "$(fzf-share)/key-bindings.bash"
```