Add opensolr to projects list

[InspiredGuy]

Issue #, if available: https://github.com/ajaxorg/ace/issues/5606

Description of changes: Add opensolr to projects list

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

Pull Request Checklist:

• [X] No backwards incompatible changes were made to Ace's public interface which is defined through the main typings file (ace.d.ts) and its references:
  • https://github.com/ajaxorg/ace/blob/master/ace.d.ts
  • https://github.com/ajaxorg/ace/blob/master/ace-modes.d.ts
  • https://github.com/ajaxorg/ace/blob/master/ace-extensions.d.ts

[codecov[bot]]

Codecov Report

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

Project coverage is 86.79%. Comparing base (1bad1a1) to head (925e791).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #5608 +/- ## ======================================= Coverage 86.79% 86.79% ======================================= Files 594 594 Lines 43129 43129 Branches 7149 7149 ======================================= Hits 37434 37434 Misses 5695 5695 ``` | [Flag](https://app.codecov.io/gh/ajaxorg/ace/pull/5608/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ajaxorg) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/ajaxorg/ace/pull/5608/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ajaxorg) | `86.79% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ajaxorg#carryforward-flags-in-the-pull-request-comment) to find out more.

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