Revised package name, per Martin's suggestions

Author: dwicinas

advocacy_docs/pg_extensions/wait_states/installing.mdx

@@ -10,7 +10,7 @@ To install EDB Wait States on any Linux operating system except Debian or Ubuntu
 1.  Enter the following command:
 
   ```shell
-  sudo <package-manager> -y install <install-command>
+  sudo <package-manager> -y install <install-package-name>
   ```
 
   Where: 
@@ -23,7 +23,7 @@ To install EDB Wait States on any Linux operating system except Debian or Ubuntu
       | yum             | RHEL 7 and derivatives, CentOS 7 |
       | zypper          | SLES                             |
 
-    - `<install-command>` is the command required for the type of Postgres distribution you're using. In these commands `<version>` is the version of the Postgres distribution. 
+    - `<install-package-name>` is the name of the Postgres distribution you're using. In the package names `<version>` is the version of the Postgres distribution. 
 
       | Type of Postgres distribution | Install command                             |
       | ----------------------------- | ------------------------------------------- |
@@ -59,12 +59,12 @@ To install EDB Wait States on Debian or Ubuntu:
 1.  Enter the following command:
 
   ```shell
-  sudo apt-get -y install <install-command>
+  sudo apt-get -y install <install-package-name>
   ```
 
   Where: 
 
-  `<install-command>` is the command required for the type of Postgres distribution you're using. In these commands `<version>` is the version of the Postgres distribution. 
+  `<install-package-name>` is the name of the Postgres distribution you're using. In the package names `<version>` is the version of the Postgres distribution. 
 
   | Type of Postgres distribution | Install command                              |
   | ----------------------------- | -------------------------------------------- |