Update README.md per changes

examples/word-count/README.md

@@ -20,12 +20,12 @@ The project structure looks like this:
 ```
 tree
 .
+├── README.md
 ├── deps.edn
 ├── dev
-│   └── system.clj
-├── README.md
+│   └── user.clj
 ├── resources
-│   ├── logback.xml
+│   ├── logback.xml -> ../../resources/logback.xml
 │   └── metamorphosis.txt
 ├── src
 │   └── word_count.clj
@@ -35,23 +35,20 @@ tree
 4 directories, 7 files
 ```
 
-The `deps.edn` file describes the project's source paths and
-dependencies.
+The `deps.edn` file describes the source paths and dependencies.
 
-The `system.clj` file contains functions to start and stop the
-app. These are used by the `user` namespace for interactive
-development.
+The `user.clj` file contains functions to start and stop the
+app during interactive development.
 
-The `word_count.clj` file describes the app and the topology. The
+The `word_count.clj` file contains the app and topology. The
 application reads from a Kafka topic called `input` and splits the
-input value into words. It puts the count on a Kafka topic called
-`output` for each word seen:
+value into words. It then writes to a Kafka topic called `output` for
+each word seen:
 ```
 (defn topology-builder
   [topic-metadata]
   (fn [builder]
-    (let [text-input (-> (j/kstream builder (:input (topic-metadata)))
-                         (j/peek (fn [[k v]] (info (str {:key k :value v})))))
+    (let [text-input (j/kstream builder (:input topic-metadata))
 
           counts (-> text-input
                      (j/flat-map-values split-lines)
@@ -60,7 +57,7 @@ input value into words. It puts the count on a Kafka topic called
 
       (-> counts
           (j/to-kstream)
-          (j/to (:output (topic-metadata))))
+          (j/to (:output topic-metadata)))
 
       builder)))
 ```
@@ -70,21 +67,21 @@ The `word_count_test.clj` file contains a test
 
 ## Running the app
 
-Let's get started! Start Confluent Platform using the Confluent CLI
-`start` command.
+Let's get started! Install the CLI and start the Confluent Platform:
 ```
-<path-to-confluent>/bin/confluent start
+curl -L https://cnfl.io/cli | sh -s -- -b /<path-to-directory>/bin
+<path-to-confluent>/bin/confluent local start
 ```
 
-Then change to the Word Count project directory and start a REPL.
+Then change to the project directory and start a REPL.
 ```
 cd <path-to-jackdaw>/examples/word-count
-clj
+clj -A:dev
 ```
 
 You should see output like the following:
 ```
-Clojure 1.10.0
+Clojure 1.10.1
 user=>
 ```
 
@@ -96,19 +93,14 @@ Enter the following at the `user=>` prompt:
 If you see output like the following, congratulations, the app is
 running!
 ```
-23:01:25.939 [main] INFO  system - internal state is deleted
-23:01:26.093 [main] INFO  word-count - word-count is up
-{:app #object[org.apache.kafka.streams.KafkaStreams 0xb8b2184 "org.apache.kafka.streams.KafkaStreams@b8b2184"]}
+:reloading (word-count user)
+:resumed
 ```
 
-Let's put a couple of records on the input topic:
+Let's publish a couple of records and see the result:
 ```
 (publish (:input (topic-metadata)) nil "all streams lead to kafka")
 (publish (:input (topic-metadata)) nil "hello kafka streams")
-```
-
-We can also get the result:
-```
 (get-keyvals (:output (topic-metadata)))
 ```
 
@@ -124,14 +116,13 @@ You should see output like the following:
  ["streams" 2])
 ```
 
-For more a more in depth walkthrough, see the comment block in the
-`word_count.clj` file.
+For an in depth walkthrough, see the comment block in the `word_count.clj` file.
 
 
 ## Running tests
 
 To run tests, load the `word-count-test` namespace in your editor and
-invoke a test runner, or from the command line:
+invoke a test runner, or from the command-line:
 ```
-clj -Atest
+clj -A:test
 ```