psm: fix typo and move docs to make it pass test

Signed-off-by: Peter Gadfort <[email protected]>

Author: gadfort

src/psm/README.md

@@ -156,19 +156,6 @@ set_pdnsim_source_settings
 | `-bump_interval` | Set the bump population interval, this is used to depopulate the bump grid to emulate signals and other power connections. The default bump pitch is 3. |
 | `-strap_track_pitch` | Sets the track pitck to use for moduling voltage sources as straps. The default is 10x. |
 
-#### Selectively diconencting sources
-
-If you need to be able to disconnect some of the terminals in the design, such as in the case of "what-if" analysis or different chip packaging options.
-This can be done by assigning `PSM_DISCONNECT` to a terminal or shape in a terminal will cause PDNSim to leave that object disconnected from the analysis.
-
-```tcl
-# Assumes bpin is the block pin to be disconnected
-odb::dbBoolProperty_create $bpin PSM_DISCONNECT 1
-
-# Assumes box the box shape in the bpin to be disconnected
-odb::dbBoolProperty_create $box PSM_DISCONNECT 1
-```
-
 ### Insert Decap Cells
 The `insert_decap` command inserts decap cells in the areas with the highest
 IR Drop. The number of decap cells inserted will be limited to the target
@@ -200,6 +187,18 @@ The image below illustrate how they can be modeled, the red elements are the sou
 | - | - | - | - |
 | ![Image 1](doc/top_grid_bumps_2x.png) | ![Image 2](doc/top_grid_bumps_3x.png) | ![Image 1](doc/top_grid_straps.png) | ![Image 2](doc/top_grid_full.png) |
 
+### Selectively disconnecting sources
+
+If you need to be able to disconnect some of the terminals in the design, such as in the case of "what-if" analysis or different chip packaging options.
+This can be done by assigning `PSM_DISCONNECT` to a terminal or shape in a terminal will cause PDNSim to leave that object disconnected from the analysis.
+
+```tcl
+# Assumes bpin is the block pin to be disconnected
+odb::dbBoolProperty_create $bpin PSM_DISCONNECT 1
+
+# Assumes box the box shape in the bpin to be disconnected
+odb::dbBoolProperty_create $box PSM_DISCONNECT 1
+```
 
 ## Useful Developer Commands