Merge pull request #4382 from camilosm/add-topic-instrumentation

create topic: instrumentation

docs/API.md

@@ -9,7 +9,7 @@ referring to the same subject matter as the topic. You should not list another t
 if the alias is a superset of your topic.
 
 For example, `api` makes sense in the `related` field for the `graphql` topic, but because many
-repositories tagged with `api` are _not_ be associated with `graphql`, `api` does not make sense
+repositories tagged with `api` are _not_ to be associated with `graphql`, `api` does not make sense
 in the `aliases` field for `graphql`.
 
 Each alias must be formatted like that topic's `topic` field (same as the URL slug). Acceptable formatting:

topics/instrumentation/index.md

@@ -0,0 +1,9 @@
+---
+display_name: Instrumentation
+short_description: Instrumentation is the act of inserting instructions into software to analyze it without changing its overall behavior.
+topic: instrumentation
+wikipedia_url: https://en.wikipedia.org/wiki/Instrumentation_(computer_programming)
+related: code-instrumentation, binary-instrumentation
+---
+In computer science, **instrumentation** is a technique that consists of inserting specific instructions into a program to monitor and/or analyze its performance, functionality, or behavior, but without changing how it behaves.
+It can be done statically, changing the program before executing it, or dynamically, inserting instructions while it's being executed.