Update new1.sh (#16)

Fixes incorrect strings.

Author: willum070

samples/new1.sh

@@ -127,30 +127,30 @@ https://github.com/googlemaps-samples/js-api-samples.
 ### Before starting run:
 
 \`\`\`
-$npmStr i
+${npmStr} i
 \`\`\`
 
 ### Run an example on a local web server
 
 First `cd` to the folder for the sample to run, then:
 
 \`\`\`
-$npmStr start`
+${npmStr} start`
 \`\`\`
 
 ### Build an individual example
 
 From `samples/`:
 
 \`\`\`
-$npmStr run build --workspace=sample-name/
+${npmStr} run build --workspace=sample-name/
 \`\`\`
 
 ### Build all of the examples.
 
 From `samples/`:
 \`\`\`
-$npmStr run build-all
+${npmStr} run build-all
 \`\`\`
 
 ## Feedback