Add generic Docker Postgres instructions

Closes #2049 (closed)

.vscode/markdown.code-snippets

+{
+	"Callout": {
+		"prefix": "callout",
+		"description": "Add a callout to highlight information",
+		"body": [
+			":::{${1|attention,caution,danger,error,hint,important,note,seealso,tip,warning|}} ${2:Optional title}",
+			"${0:${TM_SELECTED_TEXT}}",
+			":::"
+		],
+	},
+	"Code tabs": {
+		"prefix": "code-tabs",
+		"description": "Insert a set of code tabs",
+		"body": [
+			":::{tab-set-code}",
+			"",
+			"$0",
+			"",
+			":::"
+		]
+	},
+	"Tab set": {
+		"prefix": "tab-set",
+		"description": "Insert a group of generic tabs",
+		"body": [
+			"::::{tab-set}",
+			":::{tab-item} ${1:Tab title}",
+			"$2",
+			":::",
+			"",
+			":::{tab-item} ${3:Tab title}",
+			"$0",
+			":::",
+			"",
+			"::::"
+		]
+	},
+	"Insert fragment": {
+		"prefix": "insert fragment",
+		"description": "Insert reusable text from another file",
+		"body": [
+			":::{include} ${1:full path to file}",
+			":start-after: ${2:the text to start after}",
+			":end-before: ${0:the text to end before}",
+			":::"
+		]
+	},
+	"Dropdown": {
+		"prefix": "insert dropdown",
+		"description": "Insert a dropdown (accordion)",
+		"body": [
+			":::{dropdown} ${1:title}",
+			"${0:${TM_SELECTED_TEXT}}",
+			":::"
+		]
+	},
+	"Versioning": {
+		"prefix": "version change",
+		"description": "Specify when a feature was added, changed, or deprecated",
+		"body": [
+			":::{${1|versionadded,versionchanged,deprecated|}} ${2:v4.32.0}",
+			"${0:${TM_SELECTED_TEXT}}",
+			":::"
+		]
+	},
+	"List table": {
+		"prefix": "list table",
+		"description": "Insert a table defined as a set of lists",
+		"body": [
+			":::{list-table} ${1:Optional title}",
+			":header-rows: ${2:Number of header rows}",
+			"",
+			"* - ${3: First row column 1}",
+			"   - ${4: First row column 2}",
+			"* - ${5: Second row column 1}",
+			"   - ${0: Second row column 2}",
+			":::"
+		]
+	},
+	"Guilabel": {
+		"prefix": "guilabel",
+		"description": "Format text as a GUI label (e.g. a button label or interface label",
+		"body": [
+			"{guilabel}`${0:${TM_SELECTED_TEXT}}`"
+		]
+	},
+	"File": {
+		"prefix": "file",
+		"description": "Format text as a file name or path",
+		"body": [
+			"{file}`${0:${TM_SELECTED_TEXT}}`"
+		]
+	},
+	"Increase indent": {
+		"prefix": "increase indent",
+		"description": "Increase the indentation of all selected colon or backtick fences",
+		"body": [
+			"${TM_SELECTED_TEXT/((?<c>[`:])\\k<c>{2,})/$1$2/gm}"
+		]
+	},
+	"Deprecation warning": {
+		"prefix": "insert deprecation warning",
+		"description": "Inserts an inline deprecation badge. Useful in tables of parameters",
+		"body": [
+			"{bdg-warning}`Deprecated`"
+		]
+	}
+}