Fix typos (#2977)

docs/use_cases/agents/baby_agi.ipynb

@@ -106,7 +106,7 @@
     "    def from_llm(cls, llm: BaseLLM, verbose: bool = True) -> LLMChain:\n",
     "        \"\"\"Get the response parser.\"\"\"\n",
     "        task_creation_template = (\n",
-    "            \"You are an task creation AI that uses the result of an execution agent\"\n",
+    "            \"You are a task creation AI that uses the result of an execution agent\"\n",
     "            \" to create new tasks with the following objective: {objective},\"\n",
     "            \" The last completed task has the result: {result}.\"\n",
     "            \" This result was based on this task description: {task_description}.\"\n",
@@ -141,7 +141,7 @@
     "    def from_llm(cls, llm: BaseLLM, verbose: bool = True) -> LLMChain:\n",
     "        \"\"\"Get the response parser.\"\"\"\n",
     "        task_prioritization_template = (\n",
-    "            \"You are an task prioritization AI tasked with cleaning the formatting of and reprioritizing\"\n",
+    "            \"You are a task prioritization AI tasked with cleaning the formatting of and reprioritizing\"\n",
     "            \" the following tasks: {task_names}.\"\n",
     "            \" Consider the ultimate objective of your team: {objective}.\"\n",
     "            \" Do not remove any tasks. Return the result as a numbered list, like:\"\n",