addressed review comments

docs/source/40_deploying_ADAM.md

@@ -526,12 +526,12 @@ to be a workable solution for testing or even production at scale, especially fo
 which perform multiple in-memory transformations and thus benefit from Spark's in-memory processing model.
 
 Follow the primary [instructions](https://github.com/bigdatagenomics/adam/blob/master/docs/source/02_installation.md) 
-for installing ADAM into `$ADAM_HOME`
+for installing ADAM into `$ADAM_HOME`. This will most likely be at a location on a shared disk accessible to all nodes, but could be at a consistant location on each machine.
 
 ### Start Spark cluster
 
-A Spark cluster can be started as a muti-node job in Slurm by creating a job file `run.cmd` such as below:
-```
+A Spark cluster can be started as a multi-node job in Slurm by creating a job file `run.cmd` such as below:
+```bash
 #!/bin/bash
 
 #SBATCH --partition=multinode
@@ -551,7 +551,8 @@ A Spark cluster can be started as a muti-node job in Slurm by creating a job fil
 # If your sys admin has installed spark as a module
 module load spark
 
-# If spark is not installed as a module, you will need to specifiy absolute path to $SPARK_HOME/bin/spark-start
+# If Spark is not installed as a module, you will need to specifiy absolute path to 
+# $SPARK_HOME/bin/spark-start where $SPARK_HOME is on shared disk or at a consistant location
 start-spark
 
 echo $MASTER
@@ -563,12 +564,12 @@ sbatch run.cmd
 ```
 
 This will start a Spark cluster containing 2 nodes that persists for 5 hours, unless you kill it sooner.
-The `slurm.out` file  created in the current directory will contain a line produced by `echo $MASTER` 
-above which willindicate the address of the Spark master to which your application or ADAM-shell 
+The file `slurm.out` created in the current directory will contain a line produced by `echo $MASTER` 
+above which will indicate the address of the Spark master to which your application or ADAM-shell 
 should connect such as `spark://somehostname:7077`
 
-### Start ADAM Shell
-Your sys admin will probably prefer that you launch your ADAM-shell or start an application from a 
+### Start adam-shell
+Your sys admin will probably prefer that you launch your `adam-shell` or start an application from a 
 cluster node rather than the head node you log in to so you may want to do so with:
 ```
 sinteractive
@@ -584,7 +585,7 @@ $ADAM_HOME/bin/adam-shell --master spark://hostnamefromslurmdotout:7077
 $ADAM_HOME/bin/adam-submit --master spark://hostnamefromslurmdotout:7077
 ```
 
-You should be able to connect to the Spark Web UI at `spark://hostnamefromslurmdotout:4040`, however 
+You should be able to connect to the Spark Web UI at `http://hostnamefromslurmdotout:4040`, however 
 you may need to ask your local sys admin to open the requried ports.
 
 ### Feedback