Update README instructions

+ Fix incorrect library name for `algorithms/trees/BST` example
+ Update root CMakeLists.txt for major directories to set binary path
+ Add instructions to install CMake LTS with pip

cpp/algorithms/sorting/heap/CMakeLists.txt

@@ -9,8 +9,6 @@
 cmake_minimum_required(VERSION 3.16)
 project(HeapSort LANGUAGES CXX)
 
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-
 add_executable(heap-sort "heap-sort.cpp")
 
 add_library(lib-heap "lib-heap.cpp")