Update 03_building_llama_cpp.md

Added missing space.

Author: madeline-underwood

content/learning-paths/servers-and-cloud-computing/arcee-foundation-model-on-aws/03_building_llama_cpp.md

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 ## Build the Llama.cpp inference engine
 
-In this step, you'll build Llama.cpp from source. Llama.cpp is a high-performance C++ implementation of the LLaMA model, optimized for inference on a range of hardware platforms,including Arm-based processors like AWS Graviton4.
+In this step, you'll build Llama.cpp from source. Llama.cpp is a high-performance C++ implementation of the LLaMA model, optimized for inference on a range of hardware platforms, including Arm-based processors like AWS Graviton4.
 
 Even though AFM-4.5B uses a custom model architecture, you can still use the standard Llama.cpp repository - Arcee AI has contributed the necessary modeling code upstream.