update llama2, rwkv, MoE courses (#52)

Author: lvyufeng

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "Season2.step_into_llm/08.MoE/mixtral-mindspore"]
+	path = Season2.step_into_llm/08.MoE/mixtral-mindspore
+	url = https://github.com/lvyufeng/mistral-mindspore

Season2.step_into_llm/05.LLaMA2/Llama2.pdf

@@ -0,0 +1,5 @@
+from mindnlp.transformers import AutoModelForCausalLM, AutoTokenizer
+tokenizer = AutoTokenizer.from_pretrained("openbmb/cpm-bee-2b")
+model = AutoModelForCausalLM.from_pretrained("openbmb/cpm-bee-2b")
+result = model.generate({"input": "今天天气不错，", "<ans>": ""}, tokenizer)
+print(result)

Season2.step_into_llm/06.CPM-Bee/run_cpmbee.py

@@ -0,0 +1,13 @@
+import mindspore
+from mindnlp.transformers import RwkvForCausalLM, AutoTokenizer
+
+expected_output = "Hello my name is Jasmine and I am a newbie to the"
+
+model_id = "RWKV/rwkv-4-169m-pile"
+tokenizer = AutoTokenizer.from_pretrained(model_id)
+input_ids = tokenizer("Hello my name is", return_tensors="ms").input_ids
+model = RwkvForCausalLM.from_pretrained(model_id, ms_dtype=mindspore.float16)
+
+output = model.generate(input_ids, max_new_tokens=10)
+output_sentence = tokenizer.decode(output[0].tolist())
+print(output_sentence, expected_output)