Fix the flash build space name.

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>

docs/known_issues.rst

diff --git a/docs/known_issues.rst b/docs/known_issues.rst
index d6bf6c0..4c8292a 100644
--- a/docs/known_issues.rst
+++ b/docs/known_issues.rst
@@ -84,10 +84,10 @@
 
 The SKY130 Oklahoma State University provided standard cells library will be integrated at a future date (see `Issue #10 <https://github.com/google/skywater-pdk/issues/10>`_).
 
-:lib:`sky130_fd_sp_fmlt` - SKY130 Flash Build Space
+:lib:`sky130_fd_sp_flash` - SKY130 Flash Build Space
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The SRAM build space is currently empty, only a placeholder is currently provided.
+The flash build space is currently empty, only a placeholder is currently provided.
 
 The components of the SRAM build space compatible with OpenRAM will be released at a future date (see `Issue #4 <https://github.com/google/skywater-pdk/issues/4>`_).