docs(pick): mention "live" scope from MiniExtra.pickers.lsp()

Author: echasnovski

doc/mini-pick.txt

@@ -563,7 +563,8 @@ This action is useful in at least two cases:
   both "hello" and "world" exact matches (in no particular order) with default
   matching, type "'hello" (notice "'" at the start) followed by `<C-Space>` and
   another "'world".
-- Reset `match` to default. Particularly useful in |MiniPick.builtin.grep_live()|.
+- Reset `match` to default. Particularly useful in |MiniPick.builtin.grep_live()|
+  and |MiniExtra.pickers.lsp()| with "workspace_symbol_live" scope.
 
 ## Scroll ~
 *MiniPick-actions-scroll*

lua/mini/pick.lua

@@ -557,7 +557,8 @@
 ---   both "hello" and "world" exact matches (in no particular order) with default
 ---   matching, type "'hello" (notice "'" at the start) followed by `<C-Space>` and
 ---   another "'world".
---- - Reset `match` to default. Particularly useful in |MiniPick.builtin.grep_live()|.
+--- - Reset `match` to default. Particularly useful in |MiniPick.builtin.grep_live()|
+---   and |MiniExtra.pickers.lsp()| with "workspace_symbol_live" scope.
 ---
 --- ## Scroll ~
 --- *MiniPick-actions-scroll*