Added string literal docs (#40835)

Co-authored-by: Simeon Schaub <[email protected]>

base/docs/basedocs.jl

@@ -2698,4 +2698,46 @@ A quoted piece of code, that does not support interpolation. See the [manual sec
 """
 QuoteNode
 
+
+"""
+ "
+`"` Is used to delimit string literals.
+
+# Examples
+
+```jldoctest
+julia> "Hello World!"
+"Hello World!"
+
+julia> "Hello World!\\n"
+"Hello World!\\n"
+```
+
+See also [`\"""`](@ref \"\"\").
+"""
+kw"\""
+
+"""
+ \"""
+`\"""` is used to delimit string literals. Strings created by triple quotation marks can contain `"` characters without escaping and are dedented to the level of the least-indented line. This is useful for defining strings within code that is indented.
+
+# Examples
+
+```jldoctest
+julia> \"""Hello World!\"""
+"Hello World!"
+
+julia> \"""Contains "quote" characters\"""
+"Contains \\"quote\\" characters"
+
+julia> \"""
+ Hello,
+ world.\"""
+"Hello,\\nworld."
+```
+
+See also [`"`](@ref \")
+"""
+kw"\"\"\""
+
 end