MeterGroup docs added

doc/metergroup/MinMaxDoc.vue

@@ -0,0 +1,54 @@
+<template>
+    <DocSectionText v-bind="$attrs">
+        <p>Boundaries are configured with the <i>min</i> and <i>max</i> values whose defaults are 0 and 100 respectively.</p>
+    </DocSectionText>
+    <div class="card">
+        <MeterGroup :value="value" :min="-50" :max="50" />
+    </div>
+    <DocSectionCode :code="code" />
+</template>
+
+<script>
+export default {
+    data() {
+        return {
+            value: [{ label: 'Space used', value: 15 }],
+            code: {
+                basic: `
+<MeterGroup :value="value" :min="-50" :max="50" />
+`,
+                options: `
+<template>
+    <div class="card">
+        <MeterGroup :value="value" :min="-50" :max="50" />
+    </div>
+</template>
+
+<script>
+export default {
+    data() {
+        return {
+            value: [{ label: 'Space used', value: 15 }],
+        };
+    }
+};
+<\/script>
+`,
+                composition: `
+<template>
+    <div class="card">
+        <MeterGroup :value="value" :min="-50" :max="50" />
+    </div>
+</template>
+
+<script setup>
+import { ref } from "vue";
+
+const value = ref([{ label: 'Space used', value: 15 }]);
+<\/script>
+`
+            }
+        };
+    }
+};
+</script>