Add Lambda support information

README.md

@@ -42,6 +42,28 @@ configs:
 
 # lambda-corpus
 
+## Support Lambda
+
+[Lambda](https://github.com/KeisukeMiyamoto1324/lambda) is a project developed by a student to build small Japanese language models from scratch. The datasets, source code, and model weights are publicly available.
+
+Training language models is very expensive, and I have funded the project with income from my part-time job. As the models grow, the cost is becoming too high for me to maintain the current development pace.
+
+You can support Lambda in two ways: use the Vast.ai referral link when purchasing GPU credits or make a donation through Ko-fi. Thank you for helping Lambda continue to grow.
+
+### PR: vast.ai
+
+Vast.ai is a GPU cloud platform that lets you rent powerful GPUs from providers around the world. It is often more affordable than major cloud providers, with **NVIDIA H100 SXM GPUs available from around $1.54 per hour**. Check out Vast.ai for a lower-cost way to train language models.
+
+When you sign up and purchase credits through the link below, I receive GPU credits equal to 3% of your purchase. This does not reduce your credits or add any extra cost. Using this link directly supports the development of Lambda.
+
+Link: https://cloud.vast.ai/?ref_id=521936
+
+### Donate
+
+You can support the project with a donation starting from $5 through Ko-fi. Your support helps cover GPU costs and allows me to continue developing larger models.
+
+Link: https://ko-fi.com/lambda_llm
+
 lambda-corpus is a Japanese text corpus for language model pretraining. It combines openly available Japanese datasets into a consistent format and provides predefined train, validation, and test splits.
 
 ## Purpose