update sponsors (website)

Author: epoberezkin

docs/.vuepress/components/Sponsors.vue

@@ -1,29 +1,67 @@
 <template>
-  <div class="sponsors">
+  <div class="sponsors" :class="level">
     <slot />
   </div>
 </template>
 
+<script>
+export default {
+  props: {
+    level: {
+      type: String,
+    },
+  },
+}
+</script>
+
 <style lang="stylus" scoped>
 .sponsors
   max-width 800px
   margin 0 auto
 
+  h2
+    margin-left 0
+    text-decoration none
+
+    a.header-anchor
+      width auto
+      margin-right 0
   p
     font-size 24px
 
-  img
-    width 100%
+  &.platinum, &.gold, &.bronze
+    img
+      width 100%
+    a
+      display block
+      margin-bottom 10px
+      @media only screen and (min-width: $MQMobileNarrow)
+        display inline-block
+        margin-bottom 0
+    a:last-child
+      margin-right 0
+
+  &.platinum
+    a
+      width 100%
+      @media only screen and (min-width: $MQMobileNarrow)
+        width 45%
+        margin-right 8%
+
+  &.gold
+    a
+      width 45%
+      margin-right 4%
+      @media only screen and (min-width: $MQMobileNarrow)
+        width 31%
+        margin-right 2%
 
-  a
-    width 100%
-    display block
-    margin-bottom 10px
-    @media only screen and (min-width: $MQMobileNarrow)
+  &.bronze
+    a
       width 45%
-      display inline-block
-      margin-bottom 0
+      margin-right 4%
+      @media only screen and (min-width: $MQMobileNarrow)
+        width 22%
+        margin-right 3%
 
-  a:first-child
-    margin-right 8%
 </style>

docs/.vuepress/public/img/microsoft.png

@@ -34,14 +34,32 @@ Use JSON Type Definition or JSON Schema
 </Feature>
 </Features>
 
-<Sponsors>
+<Sponsors level="platinum">
 
-Platinum sponsors
+## Ajv sponsors
 
 [![mozilla](/img/mozilla.svg)](https://www.mozilla.org)
-[![reserved](/img/reserved.svg)](https://opencollective.com/ajv)
+[![reserved](/img/reserved.svg)](https://github.com/sponsors/epoberezkin)
+
+</Sponsors>
+
+<Sponsors level="gold">
+
+[![mozilla](/img/microsoft.png)](https://opensource.microsoft.com)
+[![reserved](/img/reserved.svg)](https://github.com/sponsors/epoberezkin)
+[![reserved](/img/reserved.svg)](https://github.com/sponsors/epoberezkin)
 
 </Sponsors>
+
+<Sponsors level="bronze">
+
+[![retool](/img/retool.svg)](https://retool.com/?utm_source=sponsor&utm_campaign=ajv)
+[![reserved](/img/reserved.svg)](https://github.com/sponsors/epoberezkin)
+[![reserved](/img/reserved.svg)](https://github.com/sponsors/epoberezkin)
+[![reserved](/img/reserved.svg)](https://github.com/sponsors/epoberezkin)
+
+</Sponsors>
+
 </HeroSection>
 
 <HomeSection>