tweaks

Author: ablaom

docs/src/common_implementation_patterns.md

@@ -4,12 +4,6 @@
 🚧
 ```
 
-!!! warning
-
-    Under construction
-
-!!! warning
-
 	This section is only an implementation guide. The definitive specification of the
 	Learn API is given in [Reference](@ref reference).
 

docs/src/patterns/feature_engineering.md

@@ -1,5 +1,4 @@
 # Feature Engineering
 
-- For a simple feature selection algorithm (no "learning) see [these
-examples](https://github.com/JuliaAI/LearnAPI.jl/blob/dev/test/patterns/static_algorithms.jl)
-from tests.
+For a simple feature selection algorithm (no "learning) see 
+[these examples](https://github.com/JuliaAI/LearnAPI.jl/blob/dev/test/patterns/static_algorithms.jl) from tests.