Add redirects for all the (moved) disk folders

disks/pcx86/tools/microsoft/c/2.03/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: Microsoft C Compiler 2.03
 permalink: /disks/pcx86/tools/microsoft/c/2.03/
+redirect_from:
+  - /disks/pc/tools/microsoft/c/2.03/
 ---
 
 Microsoft C Compiler 2.03

disks/pcx86/tools/microsoft/c/3.00/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: Microsoft C Compiler 3.00
 permalink: /disks/pcx86/tools/microsoft/c/3.00/
+redirect_from:
+  - /disks/pc/tools/microsoft/c/3.00/
 ---
 
 Microsoft C Compiler 3.00

disks/pcx86/tools/microsoft/c/4.00/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: Microsoft C Compiler 4.0
 permalink: /disks/pcx86/tools/microsoft/c/4.00/
+redirect_from:
+  - /disks/pc/tools/microsoft/c/4.00/
 ---
 
 Microsoft C Compiler 4.0

disks/pcx86/tools/microsoft/c/5.00/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: Microsoft C Compiler 5.0
 permalink: /disks/pcx86/tools/microsoft/c/5.00/
+redirect_from:
+  - /disks/pc/tools/microsoft/c/5.00/
 ---
 
 Microsoft C Compiler 5.0

disks/pcx86/tools/microsoft/c/5.10-os2/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: Microsoft C Compiler 5.10 for DOS and OS/2
 permalink: /disks/pcx86/tools/microsoft/c/5.10-os2/
+redirect_from:
+  - /disks/pc/tools/microsoft/c/5.10-os2/
 ---
 
 Microsoft C Compiler 5.10 for DOS and OS/2

disks/pcx86/tools/microsoft/c/5.10/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: Microsoft C Compiler 5.1 for DOS
 permalink: /disks/pcx86/tools/microsoft/c/5.10/
+redirect_from:
+  - /disks/pc/tools/microsoft/c/5.10/
 ---
 
 Microsoft C Compiler 5.1 for DOS

disks/pcx86/tools/microsoft/c/README.md

@@ -2,6 +2,8 @@
 layout: page
 title: Microsoft C Compilers
 permalink: /disks/pcx86/tools/microsoft/c/
+redirect_from:
+  - /disks/pc/tools/microsoft/c/
 ---
 
 Microsoft C Compilers