wiki: minor updates

Change-Id: I4ff683648ba332c5c92e86f37a0936876de11ba7
Reviewed-on: https://go-review.googlesource.com/c/wiki/+/550778
Reviewed-by: Russ Cox <rsc@golang.org>
Commit-Queue: Russ Cox <rsc@golang.org>
diff --git a/Go-is-slow.md b/Go-is-slow.md
deleted file mode 100644
index 9d6092b..0000000
--- a/Go-is-slow.md
+++ /dev/null
@@ -1 +0,0 @@
-Hello Devs, I have been using Go for 3 days now but It takes more time to execute a code into the console,What might be the problem?
\ No newline at end of file
diff --git a/LUCI.md b/LUCI.md
index 4d6181c..8cd3cf4 100644
--- a/LUCI.md
+++ b/LUCI.md
@@ -1,3 +1,7 @@
+---
+title: LUCI
+---
+
 LUCI is the CI infrastructure for the Go project. The primary post-submit dashboard can be found at https://ci.chromium.org/p/golang.
 
 # TryBots
diff --git a/PGO-Tools.md b/PGO-Tools.md
index cc96ff3..4dc8ff0 100644
--- a/PGO-Tools.md
+++ b/PGO-Tools.md
@@ -1,3 +1,7 @@
+---
+title: PGO Tools
+---
+
 [Profile-guided optimization](https://go.dev/doc/pgo) (PGO) in the Go toolchain uses CPU pprof profiles as the PGO profile format. Though pprof is a widely-used format across many tools, Go's PGO imposes [specific requirements](https://go.dev/doc/pgo#alternative-sources) on the contents of profiles, which many tools across the ecosystem may not be compatible with.
 
 This (non-exhaustive) page lists tools for collecting and working with profiles that are known to be compatible with PGO.
diff --git a/RangefuncExperiment.md b/RangefuncExperiment.md
index 6999955..713c6b5 100644
--- a/RangefuncExperiment.md
+++ b/RangefuncExperiment.md
@@ -1,3 +1,7 @@
+---
+title: Rangefunc Experiment
+---
+
 For a future Go release, the Go team is considering adding range-over function iterators.
 Go 1.22 contains a preliminary implementation of the change, enabled by setting `GOEXPERIMENT=rangefunc` when building your program. We invite anyone who wants to help us understand the effects of the change to try using `GOEXPERIMENT=rangefunc` and let us know about any problems or successes encountered.
 
@@ -5,7 +9,7 @@
 
 ### How do I try the change?
 
-Using Go 1.22, build your program using `GOEXPERIMENT=rangefunc`, as in 
+Using Go 1.22, build your program using `GOEXPERIMENT=rangefunc`, as in
 
 	GOEXPERIMENT=rangefunc go install my/program
 	GOEXPERIMENT=rangefunc go build my/program
@@ -78,7 +82,7 @@
 	// Zipped holds values from an iteration of a Seq returned by [Zip].
 	type Zipped[T1, T2 any] struct {
 		V1  T1
-		OK1 bool	
+		OK1 bool
 
 		V2  T2
 		OK2 bool
@@ -90,7 +94,7 @@
 			p1, stop := iter.Pull(seq1)
 			defer stop()
 			p2, stop := iter.Pull(seq2)
-			defer stop()	
+			defer stop()
 
 			for {
 				var val Zipped[T1, T2]
diff --git a/_Footer.md b/_Footer.md
deleted file mode 100644
index 8bb5512..0000000
--- a/_Footer.md
+++ /dev/null
@@ -1,3 +0,0 @@
-<!-- STOP.  PRESS THE BACK BUTTON.  DO NOT EDIT.  DO NOT CLICK "SAVE PAGE". -->
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