Documentation: Renamed folder

Documentation/UsersGuide/CommandLineParameters.md

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+# Command Line Parameters #
+
+## Basic usage ##
+
+Parameter|Description
+---------|-----------
+-last                   | Open last used project
+-project <filename>     | Open project file <filename>
+-case <casename>        | Import Eclipse case <casename> (do not include .GRID/.EGRID)
+-startdir               | The default directory for open/save commands
+-savesnapshots          | Save snapshot of all views to 'snapshots' folder in project file folder. Application closes after snapshots are written to file.
+-help, -?               | Displays help text
+
+## Regression test ##
+A regression tool for QA is build into ResInsight. This tool will read a project file, open all views in this project, save snapshot images to file, and close the project. When snapshot images from all projects are completed, difference images based o generated and QA-approved images are computed. Based on these three sets of images, an HTML report is created and automatically displayed.
+
+### Regression test folder structure ###
+
+```
+MyRegressionTestFolder
+  TestCase_Faults
+    RegTestBaseImages
+    RegTestDiffImages
+    RegTestGeneratedImages
+  TestCase_SOIL
+    RegTestBaseImages
+    RegTestDiffImages
+    RegTestGeneratedImages
+  ...
+```
+
+### -regressiontest <folder> ###
+Run a regression test on all sub-folders starting with ``` TestCase* ``` of the given folder. **RegressionTest.rip** files in the sub-folders will be opened and snapshots of all the views is written to the sub-sub-folder **RegTestGeneratedImages**. Then difference images is generated in the sub-sub-folder **RegTestDiffImages** based 
+on the images in sub-sub-folder **RegTestBaseImages**. The results are presented in **ResInsightRegressionTestReport.html** that is written in the given folder.
+
+### -updateregressiontestbase <folder> ###
+For all sub-folders starting with ```TestCase*```Copy the images in the sub-sub-folder **RegTestGeneratedImages** to the sub-sub-folder **RegTestBaseImages** after deleting **RegTestBaseImages** completely.