Rename Screenshotter -> screenshotter (#1573)

Fix #1570

.circleci/config.yml

@@ -29,7 +29,7 @@ screenshotter: &screenshotter
 
     - run:
         name: Verify screenshots and generate diffs and new screenshots
-        command: node dockers/Screenshotter/screenshotter.js --selenium-ip localhost -b $CIRCLE_JOB --verify --diff --new
+        command: node dockers/screenshotter/screenshotter.js --selenium-ip localhost -b $CIRCLE_JOB --verify --diff --new
 
     - store_artifacts:
         path: test/screenshotter/new

CONTRIBUTING.md

@@ -97,7 +97,7 @@ You can view the report in `coverage/lcov-report/index.html`.
 
 To ensure the final output looks good, we screenshot different expressions.
 These tests can be run by using the
-[Screenshotter docker](https://github.com/Khan/KaTeX/tree/master/dockers/Screenshotter).
+[screenshotter docker](https://github.com/Khan/KaTeX/tree/master/dockers/screenshotter).
 
 The screenshot tests should be run if you add anything more significant than
 individual symbols. These tests are not automatically run, so please remember!

dockers/screenshotter/README.md

@@ -21,7 +21,7 @@ are encouraged to reproduce the steps from `screenshotter.sh`
 manually.  Example run for Firefox:
 
     container=$(docker run -d -P selenium/standalone-firefox:2.46.0)
-    node dockers/Screenshotter/screenshotter.js -b firefox -c ${container}
+    node dockers/screenshotter/screenshotter.js -b firefox -c ${container}
     # possibly repeat the above command as often as you need, then eventually
     docker stop ${container}
     docker rm ${container}
@@ -33,7 +33,7 @@ For Chrome, simply replace both occurrences of `firefox` with `chrome`.
 It is possible to run `screenshotter.js` without the use of Docker:
 
     yarn add selenium-webdriver
-    node dockers/Screenshotter/screenshotter.js
+    node dockers/screenshotter/screenshotter.js
 
 This will generate screenshots using the Firefox installed on your system.
 Browsers other than Firefox can be targeted using the `--browser` option.
@@ -62,8 +62,8 @@ to specify a list of cases which are not being processed.
 
 Examples:
 
-    node dockers/Screenshotter/screenshotter.js -i Sqrt,SqrtRoot
-    dockers/Screenshotter/screenshotter.sh --exclude=GreekLetters
+    node dockers/screenshotter/screenshotter.js -i Sqrt,SqrtRoot
+    dockers/screenshotter/screenshotter.sh --exclude=GreekLetters
 
 # How to run screenshotter tests
 

package.json

@@ -72,7 +72,7 @@
     "test:jest:update": "jest --updateSnapshot",
     "test:jest:coverage": "jest --coverage",
     "test:screenshots": "yarn test:screenshots:update --verify",
-    "test:screenshots:update": "yarn prestart && dockers/Screenshotter/screenshotter.sh",
+    "test:screenshots:update": "yarn prestart && dockers/screenshotter/screenshotter.sh",
     "test:perf": "yarn prestart && NODE_ENV=test node test/perf-test.js",
     "clean": "rm -rf dist/ node_modules/",
     "clean-install": "yarn clean && yarn",