Update 100-memory-lifecycle.md (#1983)

content/roadmaps/106-javascript/content/116-javascript-memory-management/100-memory-lifecycle.md

@@ -1 +1,9 @@
 # Memory lifecycle
+
+Regardless of the programming language, the memory life cycle is pretty much always the same:
+
+ - Allocate the memory you need
+ - Use the allocated memory (read, write)
+ - Release the allocated memory when it is not needed anymore
+
+The second part is explicit in all languages. The first and last parts are explicit in low-level languages but are mostly implicit in high-level languages like JavaScript.