docs: Add admonition to inputs and index words (#6461) [ci skip]

Signed-off-by: Christopher Hakkaart <chris.hakkaart@seqera.io>
Signed-off-by: Chris Hakkaart <chris.hakkaart@seqera.io>

Author: christopher-hakkaart

docs/process.md

@@ -483,6 +483,8 @@ path x, name: 'my-dir/file.txt'
 In this case, `x.name` returns the file name with the parent directory (e.g. `my-dir/file.txt`), whereas normally it would return the file name (e.g. `file.txt`). You can use `x.fileName.name` to get the file name.
 :::
 
+(process-multiple-input-files)=
+
 ### Multiple input files
 
 A `path` input can also accept a collection of files instead of a single value. In this case, the input variable will be a list.
@@ -514,7 +516,7 @@ seq1 seq2 seq3
 ...
 ```
 
-The target input file name may contain the `*` and `?` wildcards, which can be used to control the name of staged files. The following table shows how the wildcards are replaced depending on the cardinality of the received input collection.
+The target input file name may contain the {index}`*` and {index}`?` wildcards, which can be used to control the name of staged files. The following table shows how the {index}`wildcards` are replaced depending on the cardinality of the received input collection.
 
 | Arity       | Name pattern | Staged file names                                                                                       |
 | ----------- | ------------ | ------------------------------------------------------------------------------------------------------- |

docs/reference/process.md

@@ -152,6 +152,10 @@ The following functions are available in the `output:` and `topic:` sections of
 
 : Declare a file input. The received value should be a file or collection of files and will be staged into the task directory.
 
+: :::{tip}
+  See {ref}`process-multiple-input-files` for more information about accepting collections of files.
+  ::: 
+
 : The argument can be an identifier or string. If an identifier, the received value will be made available to the process body as a variable. If a string, the received value will be staged into the task directory under the given alias.
 
 : Available options: