Updated css path

[ekansa]

brief description of changes

Updates a css path for the Overwriting Core Arches Content section

issues addressed

(https://github.com/archesproject/arches-docs/issues/321)

further comments

@ydrea Is there anything else we should update here? Is there any impact on behaviors with "collectstatic" etc?

---

This box must be checked

• [X] the PR branch was originally made from the base branch

This box should be checked

• [X] after these changes the docs build locally without error

This box should only be checked you intend to follow through on it (we can do it on our end too)

• [X] I will cherry-pick all commits in this PR into other branches that should have them after this PR is merged

[mradamcox]

This note looks good but I'll wait to review until @ydrea has a chance to respond on the original ticket (just want to make sure the change will be enough to address the issue).

[ekansa]

@mradamcox Sounds good! I'll make that update

[ekansa]

@mradamcox OK. I made the requested change to link to the Serving Arches with Apache page. At some point I'm going to want to make Nginx documentation too.

[ekansa]

@mradamcox OK to merge now?

[mradamcox]

Looks good, thanks for the update!

[ekansa]

Thanks for the review @mradamcox !