modprobe manpage mentions aliases, but doesn't explain the term or reference an explanation

also referenced manpages of `modinfo` and `insmod` don't explain what an alias is and give no reference to an explanation. That makes getting started with kernel modules overly hard for beginners and it'd just be one reference or half a sentence necessary to explain

Apparently there're even two types of aliases (built-ins in `.ko` files and user defined)[1]. That _needs_ to be explained!!

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[1] http://unix.stackexchange.com/questions/175901/how-to-add-an-alias-to-a-kernel-module/175923#175923

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: kmod 18-1ubuntu2
Uname: Linux 3.18.1-031801-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Dec 25 19:20:49 2014
SourcePackage: kmod
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Dependencies:
 gcc-6-base 6.2.0-5ubuntu12
 libc6 2.24-3ubuntu1
 libgcc1 1:6.2.0-5ubuntu12
 libkmod2 22-1.1ubuntu1
 lsb-base 9.20160110ubuntu5
DistroRelease: Ubuntu 16.10
InstallationDate: Installed on 2015-12-12 (330 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
NonfreeKernelModules: openafs zfs zunicode zcommon znvpair zavl
Package: kmod 22-1.1ubuntu1
PackageArchitecture: amd64
Tags: yakkety
Uname: Linux 4.8.6-040806-generic x86_64
UpgradeStatus: Upgraded to yakkety on 2016-10-17 (20 days ago)
UserGroups: adm autopilot bumblebee cdrom dip libvirtd lp lpadmin plugdev sambashare sudo
_MarkForUpload: True