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

tldr/sdk

@@ -0,0 +1,42 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# sdk
+
+> Manage parallel versions of multiple Software Development Kits.
+> Supports Java, Groovy, Scala, Kotlin, Gradle, Maven, Vert.x and many others.
+> More information: <https://sdkman.io/usage>.
+
+- Install an SDK version:
+
+`sdk install {{sdk_name}} {{sdk_version}}`
+
+- Use a specific SDK version for the current terminal session:
+
+`sdk use {{sdk_name}} {{sdk_version}}`
+
+- Show the stable version of any available SDK:
+
+`sdk current {{sdk_name}}`
+
+- Show the stable versions of all installed SDKs:
+
+`sdk current`
+
+- List all available SDKs:
+
+`sdk list`
+
+- List all versions of an SDK:
+
+`sdk list {{sdk_name}}`
+
+- Upgrade an SDK to the latest stable version:
+
+`sdk upgrade {{sdk_name}}`
+
+- Uninstall a specific SDK version:
+
+`sdk rm {{sdk_name}} {{sdk_version}}`