compress/flate: add examples
compress/flate: add examples

Updates #16360

Change-Id: I66ff23e0501363f58fe891d5e95806422071f93b
Reviewed-on: https://go-review.googlesource.com/30162
Run-TryBot: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

derekmarcotte/go,codestation/go,derekmarcotte/go,nawawi/go,golang/go,josharian/go,derekmarcotte/go,ImJasonH/go,cloudflare/go,nawawi/go,suncycheng/go,vsekhar/elastic-go,golang/go,codestation/go,derekmarcotte/go,suncycheng/go,vsekhar/elastic-go,vsekhar/elastic-go,goodlang/good,nawawi/go,vsekhar/elastic-go,goodlang/good,CAFxX/go,suncycheng/go,linux-on-ibm-z/go,linux-on-ibm-z/go,CAFxX/go,golang/go,CAFxX/go,Cofyc/go,linux-on-ibm-z/go,polyverse-security/go,CAFxX/go,goodlang/good,Cofyc/go,golang/go,josharian/go,linux-on-ibm-z/go,suncycheng/go,vsekhar/elastic-go,goodlang/good,akutz/go,golang/go,vsekhar/elastic-go,nawawi/go,cloudflare/go,polyverse-security/go,CAFxX/go,akutz/go,ImJasonH/go,polyverse-security/go,derekmarcotte/go,Cofyc/go,ImJasonH/go,codestation/go,golang/go,linux-on-ibm-z/go,CAFxX/go,derekmarcotte/go,vsekhar/elastic-go,goodlang/good,Cofyc/go,derekmarcotte/go,nawawi/go,Cofyc/go,josharian/go,polyverse-security/go,akutz/go,ImJasonH/go,akutz/go,Cofyc/go,nawawi/go,ImJasonH/go,linux-on-ibm-z/go,cloudflare/go,josharian/go,nawawi/go,polyverse-security/go,golang/go,josharian/go,christopher-henderson/Go,derekmarcotte/go,polyverse-security/go,polyverse-security/go,golang/go,Cofyc/go,cloudflare/go,codestation/go,cloudflare/go,cloudflare/go,cloudflare/go,goodlang/good,suncycheng/go,CAFxX/go,goodlang/good,josharian/go,polyverse-security/go,codestation/go,nawawi/go,akutz/go,suncycheng/go,josharian/go,ImJasonH/go,suncycheng/go,ImJasonH/go,linux-on-ibm-z/go,akutz/go,suncycheng/go,cloudflare/go,codestation/go,Cofyc/go,linux-on-ibm-z/go,vsekhar/elastic-go,akutz/go,josharian/go,codestation/go,ImJasonH/go,akutz/go,codestation/go,CAFxX/go,goodlang/good