Fix typo in expresssion

Author: jvican

blog/_posts/2018-06-10-bsp.md

@@ -44,9 +44,9 @@ wider programming community means tooling developers spend a lot of time
 working on these integrations. This work, that needs to be duplicated on each
 side every time there is a new IDE or build tool and distracts developers
 from working on bugfixes and performance improvements, ends up affecting
-their end users. This is a big deal; we developers rely on build tools and
+us -- their end users. This is a big deal; we developers rely on build tools and
 IDEs for everything! If they are slow to evolve and maintain, then our
-developer productivity takes a hit.
+developer experience takes a hit.
 
 The idea behind the Build Server Protocol is to standardize the protocol for
 how build tools (servers) and IDEs (clients) communicate, so a single Build