Add pt-BR docs translation (#3039)

* docs: add pt-br translations

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* Update mcp/overview.mdx brazilian docs

Its en-US counterpart was updated after I did a pass,
so now it includes the new section about @CrewBase

docs/pt-BR/examples/example.mdx

@@ -0,0 +1,62 @@
+---
+title: Exemplos CrewAI
+description: Uma coleção de exemplos que mostram como usar o framework CrewAI para automatizar fluxos de trabalho.
+icon: rocket-launch
+---
+
+<CardGroup cols={3}>
+  <Card
+  title="Estratégia de Marketing"
+  color="#F3A78B"
+  href="https://github.com/crewAIInc/crewAI-examples/tree/main/marketing_strategy"
+  icon="bullhorn"
+    iconType="solid"
+  >
+    Automatize a criação de estratégias de marketing com CrewAI.
+  </Card>
+  <Card
+    title="Viagem Surpresa"
+    color="#F3A78B"
+    href="https://github.com/crewAIInc/crewAI-examples/tree/main/surprise_trip"
+    icon="plane"
+      iconType="duotone"
+    >
+      Crie um roteiro de viagem surpresa com CrewAI.
+    </Card>
+    <Card
+    title="Relacionar Perfil a Posições"
+    color="#F3A78B"
+    href="https://github.com/crewAIInc/crewAI-examples/tree/main/match_profile_to_positions"
+    icon="linkedin"
+      iconType="duotone"
+    >
+      Relacione um perfil a vagas de emprego com CrewAI.
+    </Card>
+    <Card
+    title="Criar Vaga"
+    color="#F3A78B"
+    href="https://github.com/crewAIInc/crewAI-examples/tree/main/job-posting"
+    icon="newspaper"
+      iconType="duotone"
+    >
+      Crie uma vaga de emprego com CrewAI.
+    </Card>
+    <Card
+    title="Gerador de Jogos"
+    color="#F3A78B"
+    href="https://github.com/crewAIInc/crewAI-examples/tree/main/game-builder-crew"
+    icon="gamepad"
+      iconType="duotone"
+    >
+      Crie um jogo com CrewAI.
+    </Card>
+    <Card
+    title="Encontrar Candidatos"
+    color="#F3A78B"
+    href="https://github.com/crewAIInc/crewAI-examples/tree/main/recruitment"
+    icon="user-group"
+      iconType="duotone"
+    >
+      Encontre candidatos a vagas com CrewAI.
+    </Card>
+</CardGroup>