dolt-config: add page (#5720)

pages/common/dolt-config.md

@@ -0,0 +1,28 @@
+# dolt config
+
+> Read and write local (per repository) and global (per user) Dolt configuration variables.
+> More information: <https://docs.dolthub.com/interfaces/cli#dolt-config>.
+
+- List all local and global configuration options and their values:
+
+`dolt config --list`
+
+- Display the value of a local or global configuration variable:
+
+`dolt config --get {{name}}`
+
+- Modify the value of a local configuration variable, creating it if does not exist:
+
+`dolt config --add {{name}} {{value}}`
+
+- Modify the value of a global configuration variable, creating it if does not exist:
+
+`dolt config --global --add {{name}} {{value}}`
+
+- Delete a local configuration variable:
+
+`dolt config --unset {{name}}`
+
+- Delete a global configuration variable:
+
+`dolt config --global --unset {{name}}`