Fixes broken install from source link

Affected languages: en, es, id, ko, and tr.

English link text has been updated. The others will need translations.

Author: srcoley

en/documentation/installation/index.md

@@ -367,7 +367,7 @@ By default, this will install Ruby into `/usr/local`.
 To change, pass the `--prefix=DIR` option to the `./configure` script.
 
 You can find more information about building from source in the
-[Ruby README file][readme].
+[Building Ruby instructions][readme].
 
 Using the third-party tools or package managers might be a better idea,
 though, because the installed Ruby won't be managed by any tools.
@@ -389,7 +389,7 @@ though, because the installed Ruby won't be managed by any tools.
 [terminal]: https://en.wikipedia.org/wiki/List_of_terminal_emulators
 [download]: /en/downloads/
 [installers]: /en/documentation/installation/#installers
-[readme]: https://github.com/ruby/ruby#how-to-compile-and-install
+[readme]: https://github.com/ruby/ruby/blob/master/doc/contributing/building_ruby.md
 [wsl]: https://docs.microsoft.com/en-us/windows/wsl/about
 [asdf-vm]: https://asdf-vm.com/
 [asdf-ruby]: https://github.com/asdf-vm/asdf-ruby

es/documentation/installation/index.md

@@ -369,7 +369,7 @@ por ninguna otra herramienta.
 [terminal]: https://en.wikipedia.org/wiki/List_of_terminal_emulators
 [download]: /en/downloads/
 [installers]: /en/documentation/installation/#installers
-[readme]: https://github.com/ruby/ruby#how-to-compile-and-install
+[readme]: https://github.com/ruby/ruby/blob/master/doc/contributing/building_ruby.md
 [wsl]: https://docs.microsoft.com/en-us/windows/wsl/about
 [asdf-vm]: https://asdf-vm.com/
 [asdf-ruby]: https://github.com/asdf-vm/asdf-ruby

id/documentation/installation/index.md

@@ -348,5 +348,5 @@ diatur oleh alat bantu apapun.
 [terminal]: https://en.wikipedia.org/wiki/List_of_terminal_emulators
 [download]: /id/downloads/
 [installers]: /id/documentation/installation/#installers
-[readme]: https://github.com/ruby/ruby#how-to-compile-and-install
+[readme]: https://github.com/ruby/ruby/blob/master/doc/contributing/building_ruby.md
 [wsl]: https://docs.microsoft.com/en-us/windows/wsl/about

ko/documentation/installation/index.md

@@ -346,7 +346,7 @@ $ sudo make install
 [terminal]: https://ko.wikipedia.org/wiki/%EB%8B%A8%EB%A7%90_%EC%97%90%EB%AE%AC%EB%A0%88%EC%9D%B4%ED%84%B0_%EB%AA%A9%EB%A1%9D
 [download]: /ko/downloads/
 [installers]: /ko/documentation/installation/#installers
-[readme]: https://github.com/ruby/ruby#how-to-compile-and-install
+[readme]: https://github.com/ruby/ruby/blob/master/doc/contributing/building_ruby.md
 [wsl]: https://docs.microsoft.com/ko-kr/windows/wsl/about
 [asdf-vm]: https://asdf-vm.com/
 [asdf-ruby]: https://github.com/asdf-vm/asdf-ruby

tr/documentation/installation/index.md

@@ -366,7 +366,7 @@ olabilir, çünkü kurulan Ruby herhangi bir araç tarafından yönetilmeyecekti
 [terminal]: https://en.wikipedia.org/wiki/List_of_terminal_emulators
 [download]: /tr/downloads/
 [installers]: /tr/documentation/installation/#installers
-[readme]: https://github.com/ruby/ruby#how-to-compile-and-install
+[readme]: https://github.com/ruby/ruby/blob/master/doc/contributing/building_ruby.md
 [wsl]: https://docs.microsoft.com/en-us/windows/wsl/about
 [asdf-vm]: https://asdf-vm.com/
 [asdf-ruby]: https://github.com/asdf-vm/asdf-ruby