dmd, ldc, gdc, dub: add page (#11321)

* dmd: Add page

* dmd: Update page

* ldc: Add page

* gdc: Add page

* dub: Add page

* ldc: Update page

* Update dmd.md

fix lint error

* Update dub.md

fix linter error

* Update gdc.md

fix linter error

* Update ldc.md

fix linter error

* Update pages/linux/dub.md

Co-authored-by: pixel <pixel+github@chrissx.de>

* Update pages/linux/gdc.md

Co-authored-by: pixel <pixel+github@chrissx.de>

* Update dmd.md

* dmd, dub, gdc, ldc: move to common

Signed-off-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* Update pages/common/dmd.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/dmd.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/dub.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/dub.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/dub.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/ldc.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/ldc.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/ldc.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/ldc.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Update pages/common/ldc.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* Apply suggestions from code review

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* dmd, dub, gdc, ldc: update pages

Signed-off-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* dub: fix typo

Signed-off-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

---------

Signed-off-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: pixel <pixel+github@chrissx.de>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/common/gdc.md

@@ -0,0 +1,24 @@
+# gdc
+
+> D compiler using GCC as a backend.
+> More information: <https://wiki.dlang.org/Using_GDC>.
+
+- Create an executable:
+
+`gdc {{path/to/source.d}} -o {{path/to/output_executable}}`
+
+- Print information about module dependencies:
+
+`gdc -fdeps`
+
+- Generate Ddoc documentation:
+
+`gdc -fdoc`
+
+- Generate D interface files:
+
+`gdc -fintfc`
+
+- Do not link the standard GCC libraries in the compilation:
+
+`gdc -nostdlib`