Simplify session length description under efficiency and speed in README

Author: robertpiosik

README.md

@@ -31,9 +31,7 @@
 #### Efficiency and speed
 
 - For the [Agentic Search](#-agentic-search) prompt, SOTA models offer diminishing returns over mid-tiers.
-- Thanks to precompiled, zero-overhead nature of [EDIT](#-edit)/[ASK](#-edit) prompts:
-  - there are no ever-growing sessions prolonging 'thinking',
-  - iteration on instructions doesn't bloat context window.
+- Zero ever-growing sessions prolonging 'thinking' and/or lowering accuracy.
 
 ## Privacy