Move pages under tldr, lint run.sh, update docs

tldr/linux/envycontrol

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# envycontrol
+
+> GPU switching utility for Nvidia Optimus laptops.
+> More information: <https://github.com/bayasdev/envycontrol>.
+
+- Switch between different GPU modes:
+
+`sudo envycontrol -s {{nvidia|integrated|hybrid}}`
+
+- Specify your display manager manually:
+
+`envycontrol --dm`
+
+- Check current GPU mode:
+
+`sudo envycontrol --query`
+
+- Reset settings:
+
+`sudo envycontrol --reset`
+
+- Display help:
+
+`envycontrol --help`
+
+- Display version:
+
+`envycontrol --version`