more info on glob

Author: Fienne

src/faq.md

@@ -38,7 +38,7 @@ outputs:
        outputEval: $(self[0].contents)
 ```
 
-## Rename an input file
+## How do I rename an input file?
 
 This example demonstrates how to change the name of an input file
 as part of a tool description.
@@ -56,7 +56,7 @@ requirements:
         entryName: $(inputs.src1.basename)_custom_extension
 ```
 
-## Rename an output file
+## How do I rename an output file?
 
 This example demonstrates how to change the name of an output file
 from the default name given to it by a tool:
@@ -79,7 +79,7 @@ outputs:
       outputEval: ${self[0].basename=inputs.otu_table_name; return self;}
 ```
 
-## Referencing a local script
+## How do I reference a local script?
 
 There are two ways to reference a local script:
 
@@ -134,7 +134,7 @@ outputs: []
 In CWL, everything must be directly stated.
 ```
 
-## Setting `self`-based input bindings for optional inputs
+## How can I set `self`-based input bindings for optional inputs?
 
 Currently, `cwltool` can't cope with missing optional inputs if their
 input binding makes use of `self`.
@@ -447,7 +447,9 @@ those Docker format containers using the Singularity engine. Directly
 specifying a Singularity format container is not part of the CWL standards.
 
 ## How outputBinding.glob works
-The `outputBinding` section describes how to set the value of each output parameter.  The `glob` field is used to return all files/pathnames that match a specific pattern. The value of the glob field is the `output directory` Wildcard characters can be used in the filenames when searching for files. The wildcard characters can either be an asterisk `*`, a question mark `?` or a range `[]`
+The `outputBinding` section describes how to set the value of each output parameter.  The `glob` field is used to return all files/pathnames that match a specific pattern. The value of the glob field is the `output directory`.
+Glob's pattern rules abide to standard Unix path expansion rules. According to benchmarks, it is also expected to be faster than other methods for matching pathnames in directories.
+Wildcard characters can be used in the filenames when searching for files. The wildcard characters can either be an asterisk `*`, a question mark `?` or a range `[]`
 
 ```cwl
 outputs: