Update project description in README.md

Removed specific mention of tasks in the project description.

Signed-off-by: Xueqi Cheng <xueqi.cheng@vanderbilt.edu>

Author: Xueqi Cheng

README.md

@@ -3,7 +3,7 @@
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-  <strong>PyHazards: A unified research framework for AI-based natural hazard forecasting, benchmarking, and model development across wildfire, earthquake, flood, and tropical cyclone tasks.</strong>
+  <strong>PyHazards: A unified research framework for AI-based natural hazard forecasting, benchmarking, and model development.</strong>
 </p>
 
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