Update time of C/C++ Compiler Hardening Options Guide calls in README

* Drop 'Concise Guide' from C/C++ Compiler Hardening Options Guide
  description in README.

* Change link to C/C++ Compiler Hardening Options Guide meeting notes to
  point to 2024 notes.

Signed-off-by: Thomas Nyman <[email protected]>

Author: thomasnyman

README.md

@@ -137,7 +137,7 @@ Every 2 weeks, Tuesday 10am EST. The meeting invite is available on the [public
 | Effort       |    Meeting Times                                         |    Meeting Notes/Agenda    |       Git Repo        | Slack Channel | Mailing List |
 | :----------: | :------------------------------------------------------: | :------------------------: | :-------------------: | :-----------: | :----------: |
 |   Full WG    | Every 2nd Tuesday 7:00a PT/10:00a ET/1400 UTC   | [Meeting Notes](https://docs.google.com/document/d/1UClGUnOSkOH_wab6Lx43KUdkaK37L8sbWJ_GPZvc1YY/edit?usp=sharing)           |  [Git Repo](https://github.com/ossf/wg-best-practices-os-developers) | [Slack](https://openssf.slack.com/archives/C01AHCRP8BT) | [Mailing List](https://lists.openssf.org/g/openssf-wg-best-practices) |
-| Concise Guides - C/C++ Compiler Hardening Options | Occurs every 2nd Wednesday 6:00a PT/9:00a ET/1400 UTC | [Meeting Notes](https://docs.google.com/document/d/1UClGUnOSkOH_wab6Lx43KUdkaK37L8sbWJ_GPZvc1YY/edit?usp=sharing)           |  [Git Repo](https://github.com/ossf/wg-best-practices-os-developers/blob/main/docs/Compiler_Hardening_Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md) | [Slack](https://openssf.slack.com/archives/C01AHCRP8BT) | [Mailing List](https://lists.openssf.org/g/openssf-wg-best-practices) | [Mailing List](https://lists.openssf.org/g/openssf-wg-best-practices) |
+| C/C++ Compiler Hardening Options | Occurs every 2nd Thursday 6:00a PT/9:00a ET/1300 UTC | [Meeting Notes](https://docs.google.com/document/d/1JY8FREBPCUUFpuv7-4B9EjeS2MLDpel0dbG5DFWrTns)           |  [Git Repo](https://github.com/ossf/wg-best-practices-os-developers/blob/main/docs/Compiler_Hardening_Guides/Compiler-Options-Hardening-Guide-for-C-and-C%2B%2B.md) | [Slack](https://openssf.slack.com/archives/C01AHCRP8BT) | [Mailing List](https://lists.openssf.org/g/openssf-wg-best-practices) | [Mailing List](https://lists.openssf.org/g/openssf-wg-best-practices) |
 | Concise Guides - Source Code Management Best Practices | Occurs every 2nd Thursday 7:00a PT/10:00a ET/1400 UTC  | [Meeting Notes](https://docs.google.com/document/d/1UClGUnOSkOH_wab6Lx43KUdkaK37L8sbWJ_GPZvc1YY/edit?usp=sharing)           |  [Git Repo](https://github.com/ossf/wg-best-practices-os-developers/tree/main/docs/SCM-BestPractices) | [Slack](https://openssf.slack.com/archives/C01AHCRP8BT) | [Mailing List](https://lists.openssf.org/g/openssf-wg-best-practices) | [Mailing List](https://lists.openssf.org/g/openssf-wg-best-practices) |
 |   EDU.SIG   | Occurs every 2nd Wednesday 6:00a PT/9:00a ET/1400 UTC   | [Meeting Notes](https://docs.google.com/document/d/1NPk5HZLfSMLpUsqaqVcbUSmSR66gS8WoJmEqfsCwrrE/edit#heading=h.yi1fmphbeqoj)                       |  [Git Repo](https://github.com/ossf/education) | [Slack](https://openssf.slack.com/archives/C03FW3YGXH9) | [Mailing List](https://lists.openssf.org/g/openssf-sig-education) |
 |   EDU.SIG - DEI Subcommittee  | Occurs every 2nd Tuesday 8:00a PT/11:00a ET/1600 UTC   | [Meeting Notes](https://docs.google.com/document/d/1LdQ07veOcJ596Vo3aQZCFy-HHeEO7cHnbE_6u_uq9Fk/edit#)                       |  [Git Repo](https://github.com/ossf/education) | [Slack](https://openssf.slack.com/archives/C04FMD5HSC9) | [Mailing List](https://lists.openssf.org/g/openssf-sig-education-dei) |