Replace absolute links to docs.openvinotoolkit.org by relative ones (#2439) (#2461)

* Replaced direct links to docs.openvinotoolkit.org with relative links

* Replaced direct links to docs.openvinotoolkit.org with relative links. Added GSGs for Win and macOS

* Minor fixes in GSGs

* Replaced direct links to docs.openvinotoolkit.org with relative links

* Removed links to OpenVINO markdown files that contain anchor - they don't work in the current implementation of the doc process

* Fixed Notes

* Removed links to OpenVINO markdown files that contain anchor - they don't work in the current implementation of the doc process

* fixed link to installing-openvino-linux.md

docs/benchmarks/performance_benchmarks.md

@@ -216,7 +216,7 @@ Testing by Intel done on: see test date for each HW platform below.
 | BIOS Release                            | September 21, 2018                    | September 21, 2018                    | December 03, 2019         |
 | Test Date                               | July 8, 2020                         | July 8, 2020                         | July 8, 2020          |
 
-Please follow this link for more detailed configuration descriptions: [Configuration Details](https://docs.openvinotoolkit.org/resources/benchmark_files/system_configurations_2020.4.html)
+Please follow this link for more detailed configuration descriptions: [Configuration Details](https://docs.openvinotoolkit.org/resources/benchmark_files/system_configurations_2021.1.html)
 
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