remove tips.md because -c now supported [#86043066]
remove tips.md because -c now supported [#86043066]

thesrinivas/php-buildpack,nkatre/php-buildpack,Orange-OpenSource/cf-php-build-pack,tgemal00/php-buildpack,mc500/php-buildpack,hjooyang/php-buildpack,arjankroontolsma/post2,hairmare/php-buildpack,tgemal00/php-buildpack,ArthurHlt/php-buildpack,hairmare/php-buildpack,aronreid/cf-php-buildpack,hpcloud/php-buildpack,nsharma283/php-buildpack,lloydbadger/test,hjooyang/php-buildpack-3.2.2-,cloudfoundry/php-buildpack,chregu/cf-php-varnish-buildpack,zizhongwei/php-buildpack-master,aronreid/cf-php-buildpack,ochamber/cf-php-build-pack,nsharma283/php-new,zizhongwei/php-buildpack-master,nsharma283/PCF-php-buildpack,apawar2/php-buildpack,skeeso/php-buildpack,svennam92/php-buildpack,apawar2/php-buildpack,UNINETT/php-buildpack,ArthurHlt/php-buildpack,nkatre/php-buildpack,skeeso/php-buildpack,nsharma283/php-new,ochamber/cf-php-build-pack,hpcloud/php-buildpack,lloydbadger/test,ArthurHlt/php-buildpack,jan-randis/php-db2-mysql-buildpack,ashish17das/cf-php-build,ArthurHlt/php-buildpack,ArthurHlt/php-buildpack,hjooyang/php-buildpack-3.2.2-,skeeso/php-buildpack,nkatre/php-buildpack,jan-randis/php-db2-mysql-buildpack,zhangyanfa/yanfaz-php-buildpack,hairmare/php-buildpack,lloydbadger/test,nsharma283/PCF-php-buildpack,nsharma283/php-new,hairmare/php-buildpack,hairmare/php-buildpack,hjooyang/php-buildpack-3.2.2-,hjooyang/php-buildpack-3.2.2-,hjooyang/php-buildpack,hpcloud/php-buildpack,cloudfoundry/php-buildpack,LeonidLe/php-buildpack,mc500/php-buildpack,UNINETT/php-buildpack,ochamber/cf-php-build-pack,aronreid/cf-php-buildpack,chregu/cf-php-varnish-buildpack,jan-randis/php-db2-mysql-buildpack,apawar2/php-buildpack,hairmare/php-buildpack,lloydbadger/test,thesrinivas/php-buildpack,nsharma283/PCF-php-buildpack,cloudfoundry/php-buildpack,svrc-pivotal/php-buildpack,lloydbadger/test,zhangyanfa/yanfaz-php-buildpack,hjooyang/php-buildpack-3.2.2-,zhangyanfa/yanfaz-php-buildpack,zhangyanfa/yanfaz-php-buildpack,jsloyer/php-buildpack,mc500/php-buildpack,nsharma283/PCF-php-buildpack,hjooyang/php-buildpack,jsloyer/php-buildpack,svennam92/php-buildpack,skeeso/php-buildpack,svennam92/php-buildpack,tgemal00/php-buildpack,jsloyer/php-buildpack,jan-randis/php-db2-mysql-buildpack,Orange-OpenSource/cf-php-build-pack,nsharma283/php-buildpack,aronreid/cf-php-buildpack,ochamber/cf-php-build-pack,nsharma283/php-new,arjankroontolsma/post2,chregu/cf-php-varnish-buildpack,apawar2/php-buildpack,UNINETT/php-buildpack,lloydbadger/test,thesrinivas/php-buildpack,hjooyang/php-buildpack,cf-identity/php-buildpack,jsloyer/php-buildpack,svrc-pivotal/php-buildpack,jan-randis/php-db2-mysql-buildpack,cloudfoundry/php-buildpack,LeonidLe/php-buildpack,nsharma283/PCF-php-buildpack,cf-identity/php-buildpack,LeonidLe/php-buildpack,cloudfoundry/php-buildpack,nsharma283/php-buildpack,hpcloud/php-buildpack,nkatre/php-buildpack,apawar2/php-buildpack,zhangyanfa/yanfaz-php-buildpack,nsharma283/php-buildpack,ashish17das/cf-php-build,cf-identity/php-buildpack,chregu/cf-php-varnish-buildpack,ochamber/cf-php-build-pack,cf-identity/php-buildpack,mc500/php-buildpack,LeonidLe/php-buildpack,ashish17das/cf-php-build,ashish17das/cf-php-build,mc500/php-buildpack,UNINETT/php-buildpack,UNINETT/php-buildpack,apawar2/php-buildpack,nsharma283/PCF-php-buildpack,svennam92/php-buildpack,zizhongwei/php-buildpack-master,ashish17das/cf-php-build,thesrinivas/php-buildpack,cf-identity/php-buildpack,nsharma283/php-buildpack,aronreid/cf-php-buildpack,hjooyang/php-buildpack,chregu/cf-php-varnish-buildpack,jan-randis/php-db2-mysql-buildpack,svennam92/php-buildpack,hairmare/php-buildpack,zizhongwei/php-buildpack-master,thesrinivas/php-buildpack,nkatre/php-buildpack,nkatre/php-buildpack,svrc-pivotal/php-buildpack,UNINETT/php-buildpack,aronreid/cf-php-buildpack,hjooyang/php-buildpack-3.2.2-,skeeso/php-buildpack,LeonidLe/php-buildpack,thesrinivas/php-buildpack,tgemal00/php-buildpack,hjooyang/php-buildpack,ashish17das/cf-php-build,hpcloud/php-buildpack,nsharma283/php-new,jsloyer/php-buildpack,nsharma283/php-new,arjankroontolsma/post2,mc500/php-buildpack,chregu/cf-php-varnish-buildpack,arjankroontolsma/post2,cloudfoundry/php-buildpack,tgemal00/php-buildpack,svrc-pivotal/php-buildpack,hpcloud/php-buildpack,svrc-pivotal/php-buildpack,jsloyer/php-buildpack,svennam92/php-buildpack,skeeso/php-buildpack,tgemal00/php-buildpack,zizhongwei/php-buildpack-master,zhangyanfa/yanfaz-php-buildpack,zizhongwei/php-buildpack-master,cf-identity/php-buildpack,ochamber/cf-php-build-pack,LeonidLe/php-buildpack,arjankroontolsma/post2,ArthurHlt/php-buildpack,cf-identity/php-buildpack,nsharma283/php-buildpack,cloudfoundry/php-buildpack,Orange-OpenSource/cf-php-build-pack,svrc-pivotal/php-buildpack,arjankroontolsma/post2