update doc strings

openpype/hosts/houdini/plugins/create/create_fbx.py

@@ -8,6 +8,8 @@ it's by default selects the output sop with mimimum idx
 or the node with render flag isntead.
 
 to eleminate any confusion, we set the sop node explictly.
+
+This plugin is part of publish process guide.
 """
 
 from openpype.hosts.houdini.api import plugin

openpype/hosts/houdini/plugins/publish/collect_fbx_type.py

@@ -5,6 +5,8 @@ It is used mainly to update instance.data
 
 P.S.
     There are some collectors that run by default for all types.
+
+This plugin is part of publish process guide.
 """
 import pyblish.api
 

openpype/hosts/houdini/plugins/publish/validate_fbx_hierarchy_path.py

@@ -1,12 +1,16 @@
 # -*- coding: utf-8 -*-
-"""It's almost the same as
+"""Validate path attribute for all primitives.
+
+It's almost the same as
 'validate_primitive_hierarchy_paths.py'
-however this one includes more comments for demonstration.
+however this one includes extra comments for demonstration.
 
 FYI, path for fbx behaves a little differently.
 In maya terms:
 in Filmbox FBX: it sets the name of the object
 in Alembic ROP: it sets the name of the shape
+
+This plugin is part of publish process guide.
 """
 
 import pyblish.api