[LyX/master] Fix bug #12711

[Enrico Forestieri]

commit 047008224008b2f170f1dff213d9699a6637418b
Author: Enrico Forestieri <forenr at lyx.org>
Date:   Sun Mar 19 09:34:01 2023 +0100

    Fix bug #12711
    
    Add a few missing autocorrect combinations.
---
 lib/autocorrect |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/lib/autocorrect b/lib/autocorrect
index a9c47e1..98a46aa 100644
--- a/lib/autocorrect
+++ b/lib/autocorrect
@@ -119,6 +119,10 @@
 \leftarrow        -    \longleftarrow
 \longleftarrow    >    \longleftrightarrow
 =                 >    \Rightarrow
+=                 <    \Leftarrow
+\Rightarrow       =    \Longrightarrow
+\Leftarrow        =    \Longleftarrow
+\Longleftarrow    >    \Longleftrightarrow
 
 
 @                 *    \circ