Update installation instructions

[devsjc]

Pull Request

Description

Update installation instructions

Fixes #

How Has This Been Tested?

Viewed README in editor

• [ ] Yes

If your changes affect data processing, have you plotted any changes? i.e. have you done a quick sanity check?

• [ ] Yes

Checklist:

• [X] My code follows OCF's coding style guidelines
• [X] I have performed a self-review of my own code
• [X] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [X] I have checked my code and corrected any misspellings

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 52.09%. Comparing base (f1e2fab) to head (b46b8a9). Report is 14 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #120 +/- ## ======================================= Coverage 52.09% 52.09% ======================================= Files 13 13 Lines 1098 1098 ======================================= Hits 572 572 Misses 526 526 ```

:umbrella: View full report in Codecov by Sentry.
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[peterdudfield]

@all-contributors please add @devsjc for code

[allcontributors[bot]]

@peterdudfield

I've put up a pull request to add @devsjc! :tada: