BMv2-Simple-Switch.md

@@ -22,7 +22,7 @@ Further details are available in the [control plane documentation page](./Contro
 
 In the second version of the language (**P4_16**, the one we use in this repository), several backwards-incompatible changes were made to the language and syntax. In particular, a large number of language features were eliminated from the language and moved into libraries including counters, checksum units, meters, etc. And thus, the core of the **P4_16** language has been made very simple and advanced features that are unique to a target architecture are now described in the so called *architecture libraries*. The *v1model* architecture (the one we import at the beginning of every program) is the architecture library for the *Simple Switch* target. It includes the declaration of all the standard metadata and intrinsic metadata fields, extern functions, and switch architecture (or pipeline) package description.
 
-The **P4_16** language also now has a *Portable Switch Architecture* (PSA) defined in [its own specification](https://p4.org/p4-spec/docs/PSA-v1.1.0.pdf). As of September 2018, a partial implementation of the PSA architecture has been done, but it is not yet complete. It will be implemented in a separate executable program named `psa_switch`, different from the `simple_switch` program described here.
+Now, the **P4_16** language also has a *Portable Switch Architecture* (PSA) defined in [its own specification](https://p4.org/p4-spec/docs/PSA-v1.1.0.pdf). As of September 2018, a partial implementation of the PSA architecture has been done, but it is not yet complete. It will be implemented in a separate executable program named `psa_switch`, different from the `simple_switch` program described here.
 
 In this document we will provide you with important information regarding the `simple_switch` architecture and the *v1model* library.