Merge pull request #109 from interlay/alexei/strong-supporter-bonus

feat: added strong supporter bonus to docs

Author: nud3l

docs/_assets/img/kintsugi/strong-supporter-visual.png

@@ -24,6 +24,11 @@ Thereby, this airdrop will feature the following **special allocations**, to cre
 
 * **Early**: 5% for first 3 days of crowdloan
 * **Referral**: 5% for the referrer and referred
+* **Strong supporter (new!)**: starting with 0.5% at 10 KSM, linearly increasing up to 5% if above 1000 KSM (min.: 10 KSM). *Applied retrospecively, incl. KSM lock-ups before announcement*. 
+
+![Strong supporter visualization](../_assets/img/kintsugi/strong-supporter-visual.png)
+
+
 * **Success**: up to 100 000 additional KINT if specific KSM lockup targets are achieved. See table:
 
 ![Crowdloan Bonuses](../_assets/img/kintsugi/crowdloan_bonuses.png)