docs: keep the troubleshooting page under budget

wiki/troubleshooting.md

@@ -5,8 +5,7 @@ order: 40
 
 # When a game does not start
 
-Most of the time, a BIOS file is missing or is the wrong version. Three checks
-find it.
+Usually a BIOS file is missing or the wrong version. Three checks find it.
 
 ## 1. Check your BIOS folder { #checking-what-you-installed }
 
@@ -25,16 +24,15 @@ Read the count line:
   1/109 present (0 verified, 1 wrong hash)
 ```
 
-- **`wrong hash`**: a file is there with the wrong contents: another region
-  or model, or damaged.
+- **`wrong hash`**: wrong contents: another region, model, or damaged.
 - **Fewer present than the total**: some files are missing.
 - **A line under a file**, like `still zipped`: it says what to fix.
 - **`0 wrong hash` and all present**: your files are fine. Go to step 3.
 
 ## 2. Fix the files
 
-Run the same command without `--check`. It adds the missing files and replaces
-the wrong ones, keeping the old ones.
+Run the same command without `--check`. It adds missing files and replaces
+wrong ones, keeping the old ones.
 
 ## 3. Check the folder and the names
 
@@ -46,9 +44,8 @@ the wrong ones, keeping the old ones.
   folder. Move its files up one level.
 - **Unzipped by hand on Linux?** Run the command once. It adds the names that
   differ only by capital letters, which some ZIPs leave out.
-- **A ZIP in parts will not open?** Download every part, like
-  `Pack.part1of2.zip` and `Pack.part2of2.zip`. Unzip each one into the same
-  folder. `--check` names a part you missed.
+- **A ZIP in parts, like `Pack.part1of2.zip`?** Unzip every part into the
+  same folder. `--check` names a part you missed.
 
 ## One console only
 
@@ -59,8 +56,7 @@ Add `--system` and its name:
 curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --check --system sony-playstation --verbose
 ```
 
-`--verbose` names each missing or wrong file. `--list-systems` shows every
-console name.
+`--verbose` names each missing or wrong file. `--list-systems` lists the names.
 
 ## My setup says UNTESTED