Add .gitignore file for Hugo.

[FelicianoTech]

Reasons for making this change:

Hugo is missing and has a directory, where files are generated, that should be ignored.

Links to documentation supporting these rule changes:

https://gohugo.io/tutorials/automated-deployments#setting-up-version-control

If this is a new template:

• Link to application or project’s homepage: https://gohugo.io/
• Hugo has grown greatly in the last few years. It's now considered the # 2 most popular static site generator right behind Jekyll.

[bep]

I suspect the more correct would be "public/"

[FelicianoTech]

The tutorial link leads with a forward slash. shrug. Updated.

[TamaMcGlinn]

leading with a forward slash is the better approach. It ignores only the one directory called public in the root of the git repository. Without a leading slash, 'public/' ignores all directories that are called public, no matter where they are.

[joeblau]

@FelicianoTech this is included on https://github.com/dvcs/gitignore

https://www.gitignore.io/api/hugo

[shiftkey]

@FelicianoTech apologies for the delay in replying to this.

I had a lot of these templates requested, but I couldn't quite figure out the right place for them. I ended up settling on #2857, and you'll see the Hugo template can now be found at community/Golang/Hugo.gitignore.

Feel free to submit any future improvements to that template, and thanks again for the contribution!