Update supporters for 2021.9.0b1

guides/supporters.rst

@@ -22,6 +22,7 @@ Contributors
 - `2016for (@2016for) <https://github.com/2016for>`__
 - `Pavel Golovin (@31337Ghost) <https://github.com/31337Ghost>`__
 - `David Martin (@3ative) <https://github.com/3ative>`__
+- `Alessandro Campolo (@a13ssandr0) <https://github.com/a13ssandr0>`__
 - `Aalian Khan (@AalianKhan) <https://github.com/AalianKhan>`__
 - `Abel Matser (@abelmatser) <https://github.com/abelmatser>`__
 - `Abílio Costa (@abmantis) <https://github.com/abmantis>`__
@@ -157,6 +158,7 @@ Contributors
 - `Destix (@Destix) <https://github.com/Destix>`__
 - `Develo (@devyte) <https://github.com/devyte>`__
 - `Dezorian (@Dezorian) <https://github.com/Dezorian>`__
+- `dgtal1 (@dgtal1) <https://github.com/dgtal1>`__
 - `Alain Turbide (@Dilbert66) <https://github.com/Dilbert66>`__
 - `Mark  (@Diramu) <https://github.com/Diramu>`__
 - `Dirk Heinke (@DirkHeinke) <https://github.com/DirkHeinke>`__
@@ -278,6 +280,7 @@ Contributors
 - `Ian Leeder (@ianleeder) <https://github.com/ianleeder>`__
 - `icarome (@icarome) <https://github.com/icarome>`__
 - `igg (@igg) <https://github.com/igg>`__
+- `Petko Bordjukov (@ignisf) <https://github.com/ignisf>`__
 - `ikatkov (@ikatkov) <https://github.com/ikatkov>`__
 - `Michael (@imeekle) <https://github.com/imeekle>`__
 - `imgbot[bot] (@imgbot[bot]) <https://github.com/imgbot[bot]>`__
@@ -298,6 +301,7 @@ Contributors
 - `jeff-h (@jeff-h) <https://github.com/jeff-h>`__
 - `Jeff Rescignano (@JeffResc) <https://github.com/JeffResc>`__
 - `Jej (@jej) <https://github.com/jej>`__
+- `Jérôme Laban (@jeromelaban) <https://github.com/jeromelaban>`__
 - `Jesse Hills (@jesserockz) <https://github.com/jesserockz>`__
 - `Jim Bauwens (@jimbauwens) <https://github.com/jimbauwens>`__
 - `Jérémy JOURDIN (@JJK801) <https://github.com/JJK801>`__
@@ -309,6 +313,7 @@ Contributors
 - `Johan van der Kuijl (@johanvanderkuijl) <https://github.com/johanvanderkuijl>`__
 - `Johboh (@Johboh) <https://github.com/Johboh>`__
 - `John Erik Halse (@johnerikhalse) <https://github.com/johnerikhalse>`__
+- `JonasEr (@JonasEr) <https://github.com/JonasEr>`__
 - `Jonathan Adams (@jonathanadams) <https://github.com/jonathanadams>`__
 - `Jonathan Treffler (@JonathanTreffler) <https://github.com/JonathanTreffler>`__
 - `JonnyaiR (@jonnyair) <https://github.com/jonnyair>`__
@@ -351,6 +356,7 @@ Contributors
 - `Jakub Šimo (@kubik369) <https://github.com/kubik369>`__
 - `kvvoff (@kvvoff) <https://github.com/kvvoff>`__
 - `Ken Davidson (@kwdavidson) <https://github.com/kwdavidson>`__
+- `Kyle Hendricks (@kylehendricks) <https://github.com/kylehendricks>`__
 - `Kyle Manna (@kylemanna) <https://github.com/kylemanna>`__
 - `la7dja (@la7dja) <https://github.com/la7dja>`__
 - `Stefan Lässer (@Laess3r) <https://github.com/Laess3r>`__
@@ -380,12 +386,14 @@ Contributors
 - `Manuel Díez (@manutenfruits) <https://github.com/manutenfruits>`__
 - `Marcel van der Veldt (@marcelveldt) <https://github.com/marcelveldt>`__
 - `Marc (@MarcHagen) <https://github.com/MarcHagen>`__
+- `Marcio Granzotto Rodrigues (@marciogranzotto) <https://github.com/marciogranzotto>`__
 - `Marc Teale (@marcteale) <https://github.com/marcteale>`__
 - `marecabo (@marecabo) <https://github.com/marecabo>`__
 - `Marvin Gaube (@margau) <https://github.com/margau>`__
 - `Martynas Griškonis (@Margriko) <https://github.com/Margriko>`__
 - `Mario (@mario-tux) <https://github.com/mario-tux>`__
 - `Matthew Harrold (@marrold) <https://github.com/marrold>`__
+- `marsjan155 (@marsjan155) <https://github.com/marsjan155>`__
 - `Martin (@martgras) <https://github.com/martgras>`__
 - `Martin Hjelmare (@MartinHjelmare) <https://github.com/MartinHjelmare>`__
 - `MartinWelsch (@MartinWelsch) <https://github.com/MartinWelsch>`__
@@ -689,4 +697,4 @@ Contributors
 - `ZTX18 (@ZTX18) <https://github.com/ZTX18>`__
 - `Christian Zufferey (@zuzu59) <https://github.com/zuzu59>`__
 
-*This page was last updated August 25, 2021.*
+*This page was last updated September 9, 2021.*