immune.md: fix entry for Slips Compatibility In The RPI

Author: AlyaGomaa

docs/immune/Immune.md

@@ -2,5 +2,5 @@
 
 
 - [Research RPI Limitations](https://stratospherelinuxips.readthedocs.io/en/develop/immune/research_rpi_limitations_and_define_acceptable_performance_benchmarks.html)
-- [Slips Compatibility In The RPI](https://stratospherelinuxips.readthedocs.io/en/develop/immune/reimplement_slips_features_incompatible_with_the_rpi.md.html)
+- [Slips Compatibility In The RPI](https://stratospherelinuxips.readthedocs.io/en/develop/immune/reimplement_slips_features_incompatible_with_the_rpi.html)
 - [LLM Research and Selection](https://stratospherelinuxips.readthedocs.io/en/develop/immune/research_and_selection_of_llm_candidates.html)